init

backend/vendor/symfony/cache-contracts/CHANGELOG.md

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+CHANGELOG
+=========
+
+The changelog is maintained for all Symfony contracts at the following URL:
+https://github.com/symfony/contracts/blob/main/CHANGELOG.md

backend/vendor/symfony/cache-contracts/CacheInterface.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Contracts\Cache;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\InvalidArgumentException;
+
+/**
+ * Covers most simple to advanced caching needs.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+interface CacheInterface
+{
+    /**
+     * Fetches a value from the pool or computes it if not found.
+     *
+     * On cache misses, a callback is called that should return the missing value.
+     * This callback is given a PSR-6 CacheItemInterface instance corresponding to the
+     * requested key, that could be used e.g. for expiration control. It could also
+     * be an ItemInterface instance when its additional features are needed.
+     *
+     * @template T
+     *
+     * @param string $key The key of the item to retrieve from the cache
+     * @param (callable(CacheItemInterface,bool):T)|(callable(ItemInterface,bool):T)|CallbackInterface<T> $callback
+     * @param float|null $beta      A float that, as it grows, controls the likeliness of triggering
+     *                              early expiration. 0 disables it, INF forces immediate expiration.
+     *                              The default (or providing null) is implementation dependent but should
+     *                              typically be 1.0, which should provide optimal stampede protection.
+     *                              See https://en.wikipedia.org/wiki/Cache_stampede#Probabilistic_early_expiration
+     * @param array      &$metadata The metadata of the cached item {@see ItemInterface::getMetadata()}
+     *
+     * @return T
+     *
+     * @throws InvalidArgumentException When $key is not valid or when $beta is negative
+     */
+    public function get(string $key, callable $callback, ?float $beta = null, ?array &$metadata = null): mixed;
+
+    /**
+     * Removes an item from the pool.
+     *
+     * @param string $key The key to delete
+     *
+     * @return bool True if the item was successfully removed, false if there was any error
+     *
+     * @throws InvalidArgumentException When $key is not valid
+     */
+    public function delete(string $key): bool;
+}

backend/vendor/symfony/cache-contracts/CacheTrait.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Contracts\Cache;
+
+use Psr\Cache\CacheItemPoolInterface;
+use Psr\Cache\InvalidArgumentException;
+use Psr\Log\LoggerInterface;
+
+// Help opcache.preload discover always-needed symbols
+class_exists(InvalidArgumentException::class);
+
+/**
+ * An implementation of CacheInterface for PSR-6 CacheItemPoolInterface classes.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+trait CacheTrait
+{
+    public function get(string $key, callable $callback, ?float $beta = null, ?array &$metadata = null): mixed
+    {
+        return $this->doGet($this, $key, $callback, $beta, $metadata);
+    }
+
+    public function delete(string $key): bool
+    {
+        return $this->deleteItem($key);
+    }
+
+    private function doGet(CacheItemPoolInterface $pool, string $key, callable $callback, ?float $beta, ?array &$metadata = null, ?LoggerInterface $logger = null): mixed
+    {
+        if (0 > $beta ??= 1.0) {
+            throw new class(\sprintf('Argument "$beta" provided to "%s::get()" must be a positive number, %f given.', static::class, $beta)) extends \InvalidArgumentException implements InvalidArgumentException {};
+        }
+
+        $item = $pool->getItem($key);
+        $recompute = !$item->isHit() || \INF === $beta;
+        $metadata = $item instanceof ItemInterface ? $item->getMetadata() : [];
+
+        if (!$recompute && $metadata) {
+            $expiry = $metadata[ItemInterface::METADATA_EXPIRY] ?? false;
+            $ctime = $metadata[ItemInterface::METADATA_CTIME] ?? false;
+
+            if ($recompute = $ctime && $expiry && $expiry <= ($now = microtime(true)) - $ctime / 1000 * $beta * log(random_int(1, \PHP_INT_MAX) / \PHP_INT_MAX)) {
+                // force applying defaultLifetime to expiry
+                $item->expiresAt(null);
+                $logger?->info('Item "{key}" elected for early recomputation {delta}s before its expiration', [
+                    'key' => $key,
+                    'delta' => \sprintf('%.1f', $expiry - $now),
+                ]);
+            }
+        }
+
+        if ($recompute) {
+            $save = true;
+            $item->set($callback($item, $save));
+            if ($save) {
+                $pool->save($item);
+            }
+        }
+
+        return $item->get();
+    }
+}

backend/vendor/symfony/cache-contracts/CallbackInterface.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Contracts\Cache;
+
+use Psr\Cache\CacheItemInterface;
+
+/**
+ * Computes and returns the cached value of an item.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @template T
+ */
+interface CallbackInterface
+{
+    /**
+     * @param CacheItemInterface|ItemInterface $item  The item to compute the value for
+     * @param bool                             &$save Should be set to false when the value should not be saved in the pool
+     *
+     * @return T The computed value for the passed item
+     */
+    public function __invoke(CacheItemInterface $item, bool &$save): mixed;
+}

backend/vendor/symfony/cache-contracts/ItemInterface.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Contracts\Cache;
+
+use Psr\Cache\CacheException;
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\InvalidArgumentException;
+
+/**
+ * Augments PSR-6's CacheItemInterface with support for tags and metadata.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+interface ItemInterface extends CacheItemInterface
+{
+    /**
+     * References the Unix timestamp stating when the item will expire.
+     */
+    public const METADATA_EXPIRY = 'expiry';
+
+    /**
+     * References the time the item took to be created, in milliseconds.
+     */
+    public const METADATA_CTIME = 'ctime';
+
+    /**
+     * References the list of tags that were assigned to the item, as string[].
+     */
+    public const METADATA_TAGS = 'tags';
+
+    /**
+     * Reserved characters that cannot be used in a key or tag.
+     */
+    public const RESERVED_CHARACTERS = '{}()/\@:';
+
+    /**
+     * Adds a tag to a cache item.
+     *
+     * Tags are strings that follow the same validation rules as keys.
+     *
+     * @param string|string[] $tags A tag or array of tags
+     *
+     * @return $this
+     *
+     * @throws InvalidArgumentException When $tag is not valid
+     * @throws CacheException           When the item comes from a pool that is not tag-aware
+     */
+    public function tag(string|iterable $tags): static;
+
+    /**
+     * Returns a list of metadata info that were saved alongside with the cached value.
+     *
+     * See ItemInterface::METADATA_* consts for keys potentially found in the returned array.
+     */
+    public function getMetadata(): array;
+}

backend/vendor/symfony/cache-contracts/LICENSE

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+Copyright (c) 2018-present Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

backend/vendor/symfony/cache-contracts/NamespacedPoolInterface.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Contracts\Cache;
+
+use Psr\Cache\InvalidArgumentException;
+
+/**
+ * Enables namespace-based invalidation by prefixing keys with backend-native namespace separators.
+ *
+ * Note that calling `withSubNamespace()` MUST NOT mutate the pool, but return a new instance instead.
+ *
+ * When tags are used, they MUST ignore sub-namespaces.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+interface NamespacedPoolInterface
+{
+    /**
+     * @throws InvalidArgumentException If the namespace contains characters found in ItemInterface's RESERVED_CHARACTERS
+     */
+    public function withSubNamespace(string $namespace): static;
+}

backend/vendor/symfony/cache-contracts/README.md

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+Symfony Cache Contracts
+=======================
+
+A set of abstractions extracted out of the Symfony components.
+
+Can be used to build on semantics that the Symfony components proved useful and
+that already have battle tested implementations.
+
+See https://github.com/symfony/contracts/blob/main/README.md for more information.

backend/vendor/symfony/cache-contracts/TagAwareCacheInterface.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Contracts\Cache;
+
+use Psr\Cache\InvalidArgumentException;
+
+/**
+ * Allows invalidating cached items using tags.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+interface TagAwareCacheInterface extends CacheInterface
+{
+    /**
+     * Invalidates cached items using tags.
+     *
+     * When implemented on a PSR-6 pool, invalidation should not apply
+     * to deferred items. Instead, they should be committed as usual.
+     * This allows replacing old tagged values by new ones without
+     * race conditions.
+     *
+     * @param string[] $tags An array of tags to invalidate
+     *
+     * @return bool True on success
+     *
+     * @throws InvalidArgumentException When $tags is not valid
+     */
+    public function invalidateTags(array $tags): bool;
+}

backend/vendor/symfony/cache-contracts/composer.json

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+{
+    "name": "symfony/cache-contracts",
+    "type": "library",
+    "description": "Generic abstractions related to caching",
+    "keywords": ["abstractions", "contracts", "decoupling", "interfaces", "interoperability", "standards"],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Nicolas Grekas",
+            "email": "p@tchwork.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": ">=8.1",
+        "psr/cache": "^3.0"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Contracts\\Cache\\": "" }
+    },
+    "minimum-stability": "dev",
+    "extra": {
+        "branch-alias": {
+            "dev-main": "3.6-dev"
+        },
+        "thanks": {
+            "name": "symfony/contracts",
+            "url": "https://github.com/symfony/contracts"
+        }
+    }
+}

backend/vendor/symfony/cache/Adapter/AbstractAdapter.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Log\LoggerAwareInterface;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\AbstractAdapterTrait;
+use Symfony\Component\Cache\Traits\ContractsTrait;
+use Symfony\Contracts\Cache\CacheInterface;
+use Symfony\Contracts\Cache\NamespacedPoolInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+abstract class AbstractAdapter implements AdapterInterface, CacheInterface, NamespacedPoolInterface, LoggerAwareInterface, ResettableInterface
+{
+    use AbstractAdapterTrait;
+    use ContractsTrait;
+
+    /**
+     * @internal
+     */
+    protected const NS_SEPARATOR = ':';
+
+    private static bool $apcuSupported;
+
+    protected function __construct(string $namespace = '', int $defaultLifetime = 0)
+    {
+        if ('' !== $namespace) {
+            if (str_contains($namespace, static::NS_SEPARATOR)) {
+                if (str_contains($namespace, static::NS_SEPARATOR.static::NS_SEPARATOR)) {
+                    throw new InvalidArgumentException(\sprintf('Cache namespace "%s" contains empty sub-namespace.', $namespace));
+                }
+                CacheItem::validateKey(str_replace(static::NS_SEPARATOR, '', $namespace));
+            } else {
+                CacheItem::validateKey($namespace);
+            }
+            $this->namespace = $namespace.static::NS_SEPARATOR;
+        }
+        $this->rootNamespace = $this->namespace;
+
+        $this->defaultLifetime = $defaultLifetime;
+        if (null !== $this->maxIdLength && \strlen($namespace) > $this->maxIdLength - 24) {
+            throw new InvalidArgumentException(\sprintf('Namespace must be %d chars max, %d given ("%s").', $this->maxIdLength - 24, \strlen($namespace), $namespace));
+        }
+        self::$createCacheItem ??= \Closure::bind(
+            static function ($key, $value, $isHit) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+                $item->unpack();
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        self::$mergeByLifetime ??= \Closure::bind(
+            static function ($deferred, $namespace, &$expiredIds, $getId, $defaultLifetime) {
+                $byLifetime = [];
+                $now = microtime(true);
+                $expiredIds = [];
+
+                foreach ($deferred as $key => $item) {
+                    $key = (string) $key;
+                    if (null === $item->expiry) {
+                        $ttl = 0 < $defaultLifetime ? $defaultLifetime : 0;
+                    } elseif (!$item->expiry) {
+                        $ttl = 0;
+                    } elseif (0 >= $ttl = (int) (0.1 + $item->expiry - $now)) {
+                        $expiredIds[] = $getId($key);
+                        continue;
+                    }
+                    $byLifetime[$ttl][$getId($key)] = $item->pack();
+                }
+
+                return $byLifetime;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * Returns the best possible adapter that your runtime supports.
+     *
+     * Using ApcuAdapter makes system caches compatible with read-only filesystems.
+     */
+    public static function createSystemCache(string $namespace, int $defaultLifetime, string $version, string $directory, ?LoggerInterface $logger = null): AdapterInterface
+    {
+        $opcache = new PhpFilesAdapter($namespace, $defaultLifetime, $directory, true);
+        if (null !== $logger) {
+            $opcache->setLogger($logger);
+        }
+
+        if (!self::$apcuSupported ??= ApcuAdapter::isSupported()) {
+            return $opcache;
+        }
+
+        if ('cli' === \PHP_SAPI && !filter_var(\ini_get('apc.enable_cli'), \FILTER_VALIDATE_BOOL)) {
+            return $opcache;
+        }
+
+        $apcu = new ApcuAdapter($namespace, intdiv($defaultLifetime, 5), $version);
+        if (null !== $logger) {
+            $apcu->setLogger($logger);
+        }
+
+        return new ChainAdapter([$apcu, $opcache]);
+    }
+
+    public static function createConnection(#[\SensitiveParameter] string $dsn, array $options = []): mixed
+    {
+        if (str_starts_with($dsn, 'redis:') || str_starts_with($dsn, 'rediss:') || str_starts_with($dsn, 'valkey:') || str_starts_with($dsn, 'valkeys:')) {
+            return RedisAdapter::createConnection($dsn, $options);
+        }
+        if (str_starts_with($dsn, 'memcached:')) {
+            return MemcachedAdapter::createConnection($dsn, $options);
+        }
+        if (str_starts_with($dsn, 'couchbase:')) {
+            if (class_exists(\CouchbaseBucket::class) && CouchbaseBucketAdapter::isSupported()) {
+                return CouchbaseBucketAdapter::createConnection($dsn, $options);
+            }
+
+            return CouchbaseCollectionAdapter::createConnection($dsn, $options);
+        }
+        if (preg_match('/^(mysql|oci|pgsql|sqlsrv|sqlite):/', $dsn)) {
+            return PdoAdapter::createConnection($dsn, $options);
+        }
+
+        throw new InvalidArgumentException('Unsupported DSN: it does not start with "redis[s]:", "valkey[s]:", "memcached:", "couchbase:", "mysql:", "oci:", "pgsql:", "sqlsrv:" nor "sqlite:".');
+    }
+
+    public function commit(): bool
+    {
+        $ok = true;
+        $byLifetime = (self::$mergeByLifetime)($this->deferred, $this->namespace, $expiredIds, $this->getId(...), $this->defaultLifetime);
+        $retry = $this->deferred = [];
+
+        if ($expiredIds) {
+            try {
+                $this->doDelete($expiredIds);
+            } catch (\Exception $e) {
+                $ok = false;
+                CacheItem::log($this->logger, 'Failed to delete expired items: '.$e->getMessage(), ['exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+            }
+        }
+        foreach ($byLifetime as $lifetime => $values) {
+            try {
+                $e = $this->doSave($values, $lifetime);
+            } catch (\Exception $e) {
+            }
+            if (true === $e || [] === $e) {
+                continue;
+            }
+            if (\is_array($e) || 1 === \count($values)) {
+                foreach (\is_array($e) ? $e : array_keys($values) as $id) {
+                    $ok = false;
+                    $v = $values[$id];
+                    $type = get_debug_type($v);
+                    $message = \sprintf('Failed to save key "{key}" of type %s%s', $type, $e instanceof \Exception ? ': '.$e->getMessage() : '.');
+                    CacheItem::log($this->logger, $message, ['key' => substr($id, \strlen($this->rootNamespace)), 'exception' => $e instanceof \Exception ? $e : null, 'cache-adapter' => get_debug_type($this)]);
+                }
+            } else {
+                foreach ($values as $id => $v) {
+                    $retry[$lifetime][] = $id;
+                }
+            }
+        }
+
+        // When bulk-save failed, retry each item individually
+        foreach ($retry as $lifetime => $ids) {
+            foreach ($ids as $id) {
+                try {
+                    $v = $byLifetime[$lifetime][$id];
+                    $e = $this->doSave([$id => $v], $lifetime);
+                } catch (\Exception $e) {
+                }
+                if (true === $e || [] === $e) {
+                    continue;
+                }
+                $ok = false;
+                $type = get_debug_type($v);
+                $message = \sprintf('Failed to save key "{key}" of type %s%s', $type, $e instanceof \Exception ? ': '.$e->getMessage() : '.');
+                CacheItem::log($this->logger, $message, ['key' => substr($id, \strlen($this->rootNamespace)), 'exception' => $e instanceof \Exception ? $e : null, 'cache-adapter' => get_debug_type($this)]);
+            }
+        }
+
+        return $ok;
+    }
+}

backend/vendor/symfony/cache/Adapter/AbstractTagAwareAdapter.php

@@ -0,0 +1,338 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Log\LoggerAwareInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\AbstractAdapterTrait;
+use Symfony\Component\Cache\Traits\ContractsTrait;
+use Symfony\Contracts\Cache\NamespacedPoolInterface;
+use Symfony\Contracts\Cache\TagAwareCacheInterface;
+
+/**
+ * Abstract for native TagAware adapters.
+ *
+ * To keep info on tags, the tags are both serialized as part of cache value and provided as tag ids
+ * to Adapters on operations when needed for storage to doSave(), doDelete() & doInvalidate().
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ * @author André Rømcke <andre.romcke+symfony@gmail.com>
+ *
+ * @internal
+ */
+abstract class AbstractTagAwareAdapter implements TagAwareAdapterInterface, TagAwareCacheInterface, AdapterInterface, NamespacedPoolInterface, LoggerAwareInterface, ResettableInterface
+{
+    use AbstractAdapterTrait;
+    use ContractsTrait;
+
+    /**
+     * @internal
+     */
+    protected const NS_SEPARATOR = ':';
+
+    private const TAGS_PREFIX = "\1tags\1";
+
+    protected function __construct(string $namespace = '', int $defaultLifetime = 0)
+    {
+        if ('' !== $namespace) {
+            if (str_contains($namespace, static::NS_SEPARATOR)) {
+                if (str_contains($namespace, static::NS_SEPARATOR.static::NS_SEPARATOR)) {
+                    throw new InvalidArgumentException(\sprintf('Cache namespace "%s" contains empty sub-namespace.', $namespace));
+                }
+                CacheItem::validateKey(str_replace(static::NS_SEPARATOR, '', $namespace));
+            } else {
+                CacheItem::validateKey($namespace);
+            }
+            $this->namespace = $namespace.static::NS_SEPARATOR;
+        }
+        $this->rootNamespace = $this->namespace;
+
+        $this->defaultLifetime = $defaultLifetime;
+        if (null !== $this->maxIdLength && \strlen($namespace) > $this->maxIdLength - 24) {
+            throw new InvalidArgumentException(\sprintf('Namespace must be %d chars max, %d given ("%s").', $this->maxIdLength - 24, \strlen($namespace), $namespace));
+        }
+        self::$createCacheItem ??= \Closure::bind(
+            static function ($key, $value, $isHit) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->isTaggable = true;
+                // If structure does not match what we expect return item as is (no value and not a hit)
+                if (!\is_array($value) || !\array_key_exists('value', $value)) {
+                    return $item;
+                }
+                $item->isHit = $isHit;
+                // Extract value, tags and meta data from the cache value
+                $item->value = $value['value'];
+                $item->metadata[CacheItem::METADATA_TAGS] = isset($value['tags']) ? array_combine($value['tags'], $value['tags']) : [];
+                if (isset($value['meta'])) {
+                    // For compactness these values are packed, & expiry is offset to reduce size
+                    $v = unpack('Ve/Nc', $value['meta']);
+                    $item->metadata[CacheItem::METADATA_EXPIRY] = $v['e'] + CacheItem::METADATA_EXPIRY_OFFSET;
+                    $item->metadata[CacheItem::METADATA_CTIME] = $v['c'];
+                }
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        self::$mergeByLifetime ??= \Closure::bind(
+            static function ($deferred, &$expiredIds, $getId, $tagPrefix, $defaultLifetime, $rootNamespace) {
+                $byLifetime = [];
+                $now = microtime(true);
+                $expiredIds = [];
+
+                foreach ($deferred as $key => $item) {
+                    $key = (string) $key;
+                    if (null === $item->expiry) {
+                        $ttl = 0 < $defaultLifetime ? $defaultLifetime : 0;
+                    } elseif (!$item->expiry) {
+                        $ttl = 0;
+                    } elseif (0 >= $ttl = (int) (0.1 + $item->expiry - $now)) {
+                        $expiredIds[] = $getId($key);
+                        continue;
+                    }
+                    // Store Value and Tags on the cache value
+                    if (isset(($metadata = $item->newMetadata)[CacheItem::METADATA_TAGS])) {
+                        $value = ['value' => $item->value, 'tags' => $metadata[CacheItem::METADATA_TAGS]];
+                        unset($metadata[CacheItem::METADATA_TAGS]);
+                    } else {
+                        $value = ['value' => $item->value, 'tags' => []];
+                    }
+
+                    if ($metadata) {
+                        // For compactness, expiry and creation duration are packed, using magic numbers as separators
+                        $value['meta'] = pack('VN', (int) (0.1 + $metadata[CacheItem::METADATA_EXPIRY] - CacheItem::METADATA_EXPIRY_OFFSET), $metadata[CacheItem::METADATA_CTIME]);
+                    }
+
+                    // Extract tag changes, these should be removed from values in doSave()
+                    $value['tag-operations'] = ['add' => [], 'remove' => []];
+                    $oldTags = $item->metadata[CacheItem::METADATA_TAGS] ?? [];
+                    foreach (array_diff_key($value['tags'], $oldTags) as $addedTag) {
+                        $value['tag-operations']['add'][] = $getId($tagPrefix.$addedTag, $rootNamespace);
+                    }
+                    foreach (array_diff_key($oldTags, $value['tags']) as $removedTag) {
+                        $value['tag-operations']['remove'][] = $getId($tagPrefix.$removedTag, $rootNamespace);
+                    }
+                    $value['tags'] = array_keys($value['tags']);
+
+                    $byLifetime[$ttl][$getId($key)] = $value;
+                    $item->metadata = $item->newMetadata;
+                }
+
+                return $byLifetime;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * Persists several cache items immediately.
+     *
+     * @param array   $values        The values to cache, indexed by their cache identifier
+     * @param int     $lifetime      The lifetime of the cached values, 0 for persisting until manual cleaning
+     * @param array[] $addTagData    Hash where key is tag id, and array value is list of cache id's to add to tag
+     * @param array[] $removeTagData Hash where key is tag id, and array value is list of cache id's to remove to tag
+     *
+     * @return array The identifiers that failed to be cached or a boolean stating if caching succeeded or not
+     */
+    abstract protected function doSave(array $values, int $lifetime, array $addTagData = [], array $removeTagData = []): array;
+
+    /**
+     * Removes multiple items from the pool and their corresponding tags.
+     *
+     * @param array $ids An array of identifiers that should be removed from the pool
+     */
+    abstract protected function doDelete(array $ids): bool;
+
+    /**
+     * Removes relations between tags and deleted items.
+     *
+     * @param array $tagData Array of tag => key identifiers that should be removed from the pool
+     */
+    abstract protected function doDeleteTagRelations(array $tagData): bool;
+
+    /**
+     * Invalidates cached items using tags.
+     *
+     * @param string[] $tagIds An array of tags to invalidate, key is tag and value is tag id
+     */
+    abstract protected function doInvalidate(array $tagIds): bool;
+
+    /**
+     * Delete items and yields the tags they were bound to.
+     */
+    protected function doDeleteYieldTags(array $ids): iterable
+    {
+        foreach ($this->doFetch($ids) as $id => $value) {
+            yield $id => \is_array($value) && \is_array($value['tags'] ?? null) ? $value['tags'] : [];
+        }
+
+        $this->doDelete($ids);
+    }
+
+    public function commit(): bool
+    {
+        $ok = true;
+        $byLifetime = (self::$mergeByLifetime)($this->deferred, $expiredIds, $this->getId(...), self::TAGS_PREFIX, $this->defaultLifetime, $this->rootNamespace);
+        $retry = $this->deferred = [];
+
+        if ($expiredIds) {
+            // Tags are not cleaned up in this case, however that is done on invalidateTags().
+            try {
+                $this->doDelete($expiredIds);
+            } catch (\Exception $e) {
+                $ok = false;
+                CacheItem::log($this->logger, 'Failed to delete expired items: '.$e->getMessage(), ['exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+            }
+        }
+        foreach ($byLifetime as $lifetime => $values) {
+            try {
+                $values = $this->extractTagData($values, $addTagData, $removeTagData);
+                $e = $this->doSave($values, $lifetime, $addTagData, $removeTagData);
+            } catch (\Exception $e) {
+            }
+            if ([] === $e) {
+                continue;
+            }
+            if (\is_array($e) || 1 === \count($values)) {
+                foreach (\is_array($e) ? $e : array_keys($values) as $id) {
+                    $ok = false;
+                    $v = $values[$id];
+                    $type = get_debug_type($v);
+                    $message = \sprintf('Failed to save key "{key}" of type %s%s', $type, $e instanceof \Exception ? ': '.$e->getMessage() : '.');
+                    CacheItem::log($this->logger, $message, ['key' => substr($id, \strlen($this->rootNamespace)), 'exception' => $e instanceof \Exception ? $e : null, 'cache-adapter' => get_debug_type($this)]);
+                }
+            } else {
+                foreach ($values as $id => $v) {
+                    $retry[$lifetime][] = $id;
+                }
+            }
+        }
+
+        // When bulk-save failed, retry each item individually
+        foreach ($retry as $lifetime => $ids) {
+            foreach ($ids as $id) {
+                try {
+                    $v = $byLifetime[$lifetime][$id];
+                    $values = $this->extractTagData([$id => $v], $addTagData, $removeTagData);
+                    $e = $this->doSave($values, $lifetime, $addTagData, $removeTagData);
+                } catch (\Exception $e) {
+                }
+                if ([] === $e) {
+                    continue;
+                }
+                $ok = false;
+                $type = get_debug_type($v);
+                $message = \sprintf('Failed to save key "{key}" of type %s%s', $type, $e instanceof \Exception ? ': '.$e->getMessage() : '.');
+                CacheItem::log($this->logger, $message, ['key' => substr($id, \strlen($this->rootNamespace)), 'exception' => $e instanceof \Exception ? $e : null, 'cache-adapter' => get_debug_type($this)]);
+            }
+        }
+
+        return $ok;
+    }
+
+    public function deleteItems(array $keys): bool
+    {
+        if (!$keys) {
+            return true;
+        }
+
+        $ok = true;
+        $ids = [];
+        $tagData = [];
+
+        foreach ($keys as $key) {
+            $ids[$key] = $this->getId($key);
+            unset($this->deferred[$key]);
+        }
+
+        try {
+            foreach ($this->doDeleteYieldTags(array_values($ids)) as $id => $tags) {
+                foreach ($tags as $tag) {
+                    $tagData[$this->getId(self::TAGS_PREFIX.$tag, $this->rootNamespace)][] = $id;
+                }
+            }
+        } catch (\Exception) {
+            $ok = false;
+        }
+
+        try {
+            if ((!$tagData || $this->doDeleteTagRelations($tagData)) && $ok) {
+                return true;
+            }
+        } catch (\Exception) {
+        }
+
+        // When bulk-delete failed, retry each item individually
+        foreach ($ids as $key => $id) {
+            try {
+                $e = null;
+                if ($this->doDelete([$id])) {
+                    continue;
+                }
+            } catch (\Exception $e) {
+            }
+            $message = 'Failed to delete key "{key}"'.($e instanceof \Exception ? ': '.$e->getMessage() : '.');
+            CacheItem::log($this->logger, $message, ['key' => $key, 'exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+            $ok = false;
+        }
+
+        return $ok;
+    }
+
+    public function invalidateTags(array $tags): bool
+    {
+        if (!$tags) {
+            return false;
+        }
+
+        $tagIds = [];
+        foreach (array_unique($tags) as $tag) {
+            $tagIds[] = $this->getId(self::TAGS_PREFIX.$tag, $this->rootNamespace);
+        }
+
+        try {
+            if ($this->doInvalidate($tagIds)) {
+                return true;
+            }
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to invalidate tags: '.$e->getMessage(), ['exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+        }
+
+        return false;
+    }
+
+    /**
+     * Extracts tags operation data from $values set in mergeByLifetime, and returns values without it.
+     */
+    private function extractTagData(array $values, ?array &$addTagData, ?array &$removeTagData): array
+    {
+        $addTagData = $removeTagData = [];
+        foreach ($values as $id => $value) {
+            foreach ($value['tag-operations']['add'] as $tag => $tagId) {
+                $addTagData[$tagId][] = $id;
+            }
+
+            foreach ($value['tag-operations']['remove'] as $tag => $tagId) {
+                $removeTagData[$tagId][] = $id;
+            }
+
+            unset($values[$id]['tag-operations']);
+        }
+
+        return $values;
+    }
+}

backend/vendor/symfony/cache/Adapter/AdapterInterface.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+
+// Help opcache.preload discover always-needed symbols
+class_exists(CacheItem::class);
+
+/**
+ * Interface for adapters managing instances of Symfony's CacheItem.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+interface AdapterInterface extends CacheItemPoolInterface
+{
+    public function getItem(mixed $key): CacheItem;
+
+    /**
+     * @return iterable<string, CacheItem>
+     */
+    public function getItems(array $keys = []): iterable;
+
+    public function clear(string $prefix = ''): bool;
+}

backend/vendor/symfony/cache/Adapter/ApcuAdapter.php

@@ -0,0 +1,107 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ApcuAdapter extends AbstractAdapter
+{
+    /**
+     * @throws CacheException if APCu is not enabled
+     */
+    public function __construct(
+        string $namespace = '',
+        int $defaultLifetime = 0,
+        ?string $version = null,
+        private ?MarshallerInterface $marshaller = null,
+    ) {
+        if (!static::isSupported()) {
+            throw new CacheException('APCu is not enabled.');
+        }
+        if ('cli' === \PHP_SAPI) {
+            ini_set('apc.use_request_time', 0);
+        }
+        parent::__construct($namespace, $defaultLifetime);
+
+        if (null !== $version) {
+            CacheItem::validateKey($version);
+
+            if (!apcu_exists($version.'@'.$namespace)) {
+                $this->doClear($namespace);
+                apcu_add($version.'@'.$namespace, null);
+            }
+        }
+    }
+
+    public static function isSupported(): bool
+    {
+        return \function_exists('apcu_fetch') && filter_var(\ini_get('apc.enabled'), \FILTER_VALIDATE_BOOL);
+    }
+
+    protected function doFetch(array $ids): iterable
+    {
+        $unserializeCallbackHandler = ini_set('unserialize_callback_func', __CLASS__.'::handleUnserializeCallback');
+        try {
+            $values = [];
+            foreach (apcu_fetch($ids, $ok) ?: [] as $k => $v) {
+                if (null !== $v || $ok) {
+                    $values[$k] = null !== $this->marshaller ? $this->marshaller->unmarshall($v) : $v;
+                }
+            }
+
+            return $values;
+        } catch (\Error $e) {
+            throw new \ErrorException($e->getMessage(), $e->getCode(), \E_ERROR, $e->getFile(), $e->getLine());
+        } finally {
+            ini_set('unserialize_callback_func', $unserializeCallbackHandler);
+        }
+    }
+
+    protected function doHave(string $id): bool
+    {
+        return apcu_exists($id);
+    }
+
+    protected function doClear(string $namespace): bool
+    {
+        return isset($namespace[0]) && class_exists(\APCUIterator::class, false) && ('cli' !== \PHP_SAPI || filter_var(\ini_get('apc.enable_cli'), \FILTER_VALIDATE_BOOL))
+            ? apcu_delete(new \APCUIterator(\sprintf('/^%s/', preg_quote($namespace, '/')), \APC_ITER_KEY))
+            : apcu_clear_cache();
+    }
+
+    protected function doDelete(array $ids): bool
+    {
+        foreach ($ids as $id) {
+            apcu_delete($id);
+        }
+
+        return true;
+    }
+
+    protected function doSave(array $values, int $lifetime): array|bool
+    {
+        if (null !== $this->marshaller && (!$values = $this->marshaller->marshall($values, $failed))) {
+            return $failed;
+        }
+
+        if (false === $failures = apcu_store($values, null, $lifetime)) {
+            $failures = $values;
+        }
+
+        return array_keys($failures);
+    }
+}

backend/vendor/symfony/cache/Adapter/ArrayAdapter.php

@@ -0,0 +1,399 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Clock\ClockInterface;
+use Psr\Log\LoggerAwareInterface;
+use Psr\Log\LoggerAwareTrait;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Contracts\Cache\CacheInterface;
+use Symfony\Contracts\Cache\NamespacedPoolInterface;
+
+/**
+ * An in-memory cache storage.
+ *
+ * Acts as a least-recently-used (LRU) storage when configured with a maximum number of items.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ArrayAdapter implements AdapterInterface, CacheInterface, NamespacedPoolInterface, LoggerAwareInterface, ResettableInterface
+{
+    use LoggerAwareTrait;
+
+    private array $values = [];
+    private array $tags = [];
+    private array $expiries = [];
+    private array $subPools = [];
+
+    private static \Closure $createCacheItem;
+
+    /**
+     * @param bool $storeSerialized Disabling serialization can lead to cache corruptions when storing mutable values but increases performance otherwise
+     */
+    public function __construct(
+        private int $defaultLifetime = 0,
+        private bool $storeSerialized = true,
+        private float $maxLifetime = 0,
+        private int $maxItems = 0,
+        private ?ClockInterface $clock = null,
+    ) {
+        if (0 > $maxLifetime) {
+            throw new InvalidArgumentException(\sprintf('Argument $maxLifetime must be positive, %F passed.', $maxLifetime));
+        }
+
+        if (0 > $maxItems) {
+            throw new InvalidArgumentException(\sprintf('Argument $maxItems must be a positive integer, %d passed.', $maxItems));
+        }
+
+        self::$createCacheItem ??= \Closure::bind(
+            static function ($key, $value, $isHit, $tags) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+                if (null !== $tags) {
+                    $item->metadata[CacheItem::METADATA_TAGS] = $tags;
+                }
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    public function get(string $key, callable $callback, ?float $beta = null, ?array &$metadata = null): mixed
+    {
+        $item = $this->getItem($key);
+        $metadata = $item->getMetadata();
+
+        // ArrayAdapter works in memory, we don't care about stampede protection
+        if (\INF === $beta || !$item->isHit()) {
+            $save = true;
+            $item->set($callback($item, $save));
+            if ($save) {
+                $this->save($item);
+            }
+        }
+
+        return $item->get();
+    }
+
+    public function delete(string $key): bool
+    {
+        return $this->deleteItem($key);
+    }
+
+    public function hasItem(mixed $key): bool
+    {
+        if (\is_string($key) && isset($this->expiries[$key]) && $this->expiries[$key] > $this->getCurrentTime()) {
+            if ($this->maxItems) {
+                // Move the item last in the storage
+                $value = $this->values[$key];
+                unset($this->values[$key]);
+                $this->values[$key] = $value;
+            }
+
+            return true;
+        }
+        \assert('' !== CacheItem::validateKey($key));
+
+        return isset($this->expiries[$key]) && !$this->deleteItem($key);
+    }
+
+    public function getItem(mixed $key): CacheItem
+    {
+        if (!$isHit = $this->hasItem($key)) {
+            $value = null;
+
+            if (!$this->maxItems) {
+                // Track misses in non-LRU mode only
+                $this->values[$key] = null;
+            }
+        } else {
+            $value = $this->storeSerialized ? $this->unfreeze($key, $isHit) : $this->values[$key];
+        }
+
+        return (self::$createCacheItem)($key, $value, $isHit, $this->tags[$key] ?? null);
+    }
+
+    public function getItems(array $keys = []): iterable
+    {
+        \assert(self::validateKeys($keys));
+
+        return $this->generateItems($keys, $this->getCurrentTime(), self::$createCacheItem);
+    }
+
+    public function deleteItem(mixed $key): bool
+    {
+        \assert('' !== CacheItem::validateKey($key));
+        unset($this->values[$key], $this->tags[$key], $this->expiries[$key]);
+
+        return true;
+    }
+
+    public function deleteItems(array $keys): bool
+    {
+        foreach ($keys as $key) {
+            $this->deleteItem($key);
+        }
+
+        return true;
+    }
+
+    public function save(CacheItemInterface $item): bool
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $item = (array) $item;
+        $key = $item["\0*\0key"];
+        $value = $item["\0*\0value"];
+        $expiry = $item["\0*\0expiry"];
+
+        $now = $this->getCurrentTime();
+
+        if (null !== $expiry) {
+            if (!$expiry) {
+                $expiry = \PHP_INT_MAX;
+            } elseif ($expiry <= $now) {
+                $this->deleteItem($key);
+
+                return true;
+            }
+        }
+        if ($this->storeSerialized && null === $value = $this->freeze($value, $key)) {
+            return false;
+        }
+        if (null === $expiry && 0 < $this->defaultLifetime) {
+            $expiry = $this->defaultLifetime;
+            $expiry = $now + ($expiry > ($this->maxLifetime ?: $expiry) ? $this->maxLifetime : $expiry);
+        } elseif ($this->maxLifetime && (null === $expiry || $expiry > $now + $this->maxLifetime)) {
+            $expiry = $now + $this->maxLifetime;
+        }
+
+        if ($this->maxItems) {
+            unset($this->values[$key], $this->tags[$key]);
+
+            // Iterate items and vacuum expired ones while we are at it
+            foreach ($this->values as $k => $v) {
+                if ($this->expiries[$k] > $now && \count($this->values) < $this->maxItems) {
+                    break;
+                }
+
+                unset($this->values[$k], $this->tags[$k], $this->expiries[$k]);
+            }
+        }
+
+        $this->values[$key] = $value;
+        $this->expiries[$key] = $expiry ?? \PHP_INT_MAX;
+
+        if (null === $this->tags[$key] = $item["\0*\0newMetadata"][CacheItem::METADATA_TAGS] ?? null) {
+            unset($this->tags[$key]);
+        }
+
+        return true;
+    }
+
+    public function saveDeferred(CacheItemInterface $item): bool
+    {
+        return $this->save($item);
+    }
+
+    public function commit(): bool
+    {
+        return true;
+    }
+
+    public function clear(string $prefix = ''): bool
+    {
+        if ('' !== $prefix) {
+            $now = $this->getCurrentTime();
+
+            foreach ($this->values as $key => $value) {
+                if (!isset($this->expiries[$key]) || $this->expiries[$key] <= $now || str_starts_with($key, $prefix)) {
+                    unset($this->values[$key], $this->tags[$key], $this->expiries[$key]);
+                }
+            }
+
+            return true;
+        }
+
+        foreach ($this->subPools as $pool) {
+            $pool->clear();
+        }
+
+        $this->subPools = $this->values = $this->tags = $this->expiries = [];
+
+        return true;
+    }
+
+    public function withSubNamespace(string $namespace): static
+    {
+        CacheItem::validateKey($namespace);
+
+        $subPools = $this->subPools;
+
+        if (isset($subPools[$namespace])) {
+            return $subPools[$namespace];
+        }
+
+        $this->subPools = [];
+        $clone = clone $this;
+        $clone->clear();
+
+        $subPools[$namespace] = $clone;
+        $this->subPools = $subPools;
+
+        return $clone;
+    }
+
+    /**
+     * Returns all cached values, with cache miss as null.
+     */
+    public function getValues(): array
+    {
+        if (!$this->storeSerialized) {
+            return $this->values;
+        }
+
+        $values = $this->values;
+        foreach ($values as $k => $v) {
+            if (null === $v || 'N;' === $v) {
+                continue;
+            }
+            if (!\is_string($v) || !isset($v[2]) || ':' !== $v[1]) {
+                $values[$k] = serialize($v);
+            }
+        }
+
+        return $values;
+    }
+
+    public function reset(): void
+    {
+        $this->clear();
+    }
+
+    public function __clone()
+    {
+        foreach ($this->subPools as $i => $pool) {
+            $this->subPools[$i] = clone $pool;
+        }
+    }
+
+    private function generateItems(array $keys, float $now, \Closure $f): \Generator
+    {
+        foreach ($keys as $i => $key) {
+            if (!$isHit = isset($this->expiries[$key]) && ($this->expiries[$key] > $now || !$this->deleteItem($key))) {
+                $value = null;
+
+                if (!$this->maxItems) {
+                    // Track misses in non-LRU mode only
+                    $this->values[$key] = null;
+                }
+            } else {
+                if ($this->maxItems) {
+                    // Move the item last in the storage
+                    $value = $this->values[$key];
+                    unset($this->values[$key]);
+                    $this->values[$key] = $value;
+                }
+
+                $value = $this->storeSerialized ? $this->unfreeze($key, $isHit) : $this->values[$key];
+            }
+            unset($keys[$i]);
+
+            yield $key => $f($key, $value, $isHit, $this->tags[$key] ?? null);
+        }
+
+        foreach ($keys as $key) {
+            yield $key => $f($key, null, false);
+        }
+    }
+
+    private function freeze($value, string $key): string|int|float|bool|array|\UnitEnum|null
+    {
+        if (null === $value) {
+            return 'N;';
+        }
+        if (\is_string($value)) {
+            // Serialize strings if they could be confused with serialized objects or arrays
+            if ('N;' === $value || (isset($value[2]) && ':' === $value[1])) {
+                return serialize($value);
+            }
+        } elseif (!\is_scalar($value)) {
+            try {
+                $serialized = serialize($value);
+            } catch (\Exception $e) {
+                if (!isset($this->expiries[$key])) {
+                    unset($this->values[$key]);
+                }
+                $type = get_debug_type($value);
+                $message = \sprintf('Failed to save key "{key}" of type %s: %s', $type, $e->getMessage());
+                CacheItem::log($this->logger, $message, ['key' => $key, 'exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+
+                return null;
+            }
+            // Keep value serialized if it contains any objects or any internal references
+            if ('C' === $serialized[0] || 'O' === $serialized[0] || preg_match('/;[OCRr]:[1-9]/', $serialized)) {
+                return $serialized;
+            }
+        }
+
+        return $value;
+    }
+
+    private function unfreeze(string $key, bool &$isHit): mixed
+    {
+        if ('N;' === $value = $this->values[$key]) {
+            return null;
+        }
+        if (\is_string($value) && isset($value[2]) && ':' === $value[1]) {
+            try {
+                $value = unserialize($value);
+            } catch (\Exception $e) {
+                CacheItem::log($this->logger, 'Failed to unserialize key "{key}": '.$e->getMessage(), ['key' => $key, 'exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+                $value = false;
+            }
+            if (false === $value) {
+                $value = null;
+                $isHit = false;
+
+                if (!$this->maxItems) {
+                    $this->values[$key] = null;
+                }
+            }
+        }
+
+        return $value;
+    }
+
+    private function validateKeys(array $keys): bool
+    {
+        foreach ($keys as $key) {
+            if (!\is_string($key) || !isset($this->expiries[$key])) {
+                CacheItem::validateKey($key);
+            }
+        }
+
+        return true;
+    }
+
+    private function getCurrentTime(): float
+    {
+        return $this->clock?->now()->format('U.u') ?? microtime(true);
+    }
+}

backend/vendor/symfony/cache/Adapter/ChainAdapter.php

@@ -0,0 +1,310 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\BadMethodCallException;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ContractsTrait;
+use Symfony\Contracts\Cache\CacheInterface;
+use Symfony\Contracts\Cache\NamespacedPoolInterface;
+use Symfony\Contracts\Service\ResetInterface;
+
+/**
+ * Chains several adapters together.
+ *
+ * Cached items are fetched from the first adapter having them in its data store.
+ * They are saved and deleted in all adapters at once.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class ChainAdapter implements AdapterInterface, CacheInterface, NamespacedPoolInterface, PruneableInterface, ResettableInterface
+{
+    use ContractsTrait;
+
+    private array $adapters = [];
+    private int $adapterCount;
+
+    private static \Closure $syncItem;
+
+    /**
+     * @param CacheItemPoolInterface[] $adapters        The ordered list of adapters used to fetch cached items
+     * @param int                      $defaultLifetime The default lifetime of items propagated from lower adapters to upper ones
+     */
+    public function __construct(
+        array $adapters,
+        private int $defaultLifetime = 0,
+    ) {
+        if (!$adapters) {
+            throw new InvalidArgumentException('At least one adapter must be specified.');
+        }
+
+        foreach ($adapters as $adapter) {
+            if (!$adapter instanceof CacheItemPoolInterface) {
+                throw new InvalidArgumentException(\sprintf('The class "%s" does not implement the "%s" interface.', get_debug_type($adapter), CacheItemPoolInterface::class));
+            }
+            if ('cli' === \PHP_SAPI && $adapter instanceof ApcuAdapter && !filter_var(\ini_get('apc.enable_cli'), \FILTER_VALIDATE_BOOL)) {
+                continue; // skip putting APCu in the chain when the backend is disabled
+            }
+
+            if ($adapter instanceof AdapterInterface) {
+                $this->adapters[] = $adapter;
+            } else {
+                $this->adapters[] = new ProxyAdapter($adapter);
+            }
+        }
+        $this->adapterCount = \count($this->adapters);
+
+        self::$syncItem ??= \Closure::bind(
+            static function ($sourceItem, $item, $defaultLifetime, $sourceMetadata = null) {
+                $sourceItem->isTaggable = false;
+                $sourceMetadata ??= $sourceItem->metadata;
+
+                $item->value = $sourceItem->value;
+                $item->isHit = $sourceItem->isHit;
+                $item->metadata = $item->newMetadata = $sourceItem->metadata = $sourceMetadata;
+
+                if (isset($item->metadata[CacheItem::METADATA_EXPIRY])) {
+                    $item->expiresAt(\DateTimeImmutable::createFromFormat('U.u', \sprintf('%.6F', $item->metadata[CacheItem::METADATA_EXPIRY])));
+                } elseif (0 < $defaultLifetime) {
+                    $item->expiresAfter($defaultLifetime);
+                }
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    public function get(string $key, callable $callback, ?float $beta = null, ?array &$metadata = null): mixed
+    {
+        $doSave = true;
+        $callback = static function (CacheItem $item, bool &$save) use ($callback, &$doSave) {
+            $value = $callback($item, $save);
+            $doSave = $save;
+
+            return $value;
+        };
+
+        $wrap = function (?CacheItem $item = null, bool &$save = true) use ($key, $callback, $beta, &$wrap, &$doSave, &$metadata) {
+            static $lastItem;
+            static $i = 0;
+            $adapter = $this->adapters[$i];
+            if (isset($this->adapters[++$i])) {
+                $callback = $wrap;
+                $beta = \INF === $beta ? \INF : 0;
+            }
+            if ($adapter instanceof CacheInterface && $i !== $this->adapterCount) {
+                $value = $adapter->get($key, $callback, $beta, $metadata);
+            } else {
+                $value = $this->doGet($adapter, $key, $callback, $beta, $metadata);
+            }
+            if (null !== $item) {
+                (self::$syncItem)($lastItem ??= $item, $item, $this->defaultLifetime, $metadata);
+            }
+            $save = $doSave;
+
+            return $value;
+        };
+
+        return $wrap();
+    }
+
+    public function getItem(mixed $key): CacheItem
+    {
+        $syncItem = self::$syncItem;
+        $misses = [];
+
+        foreach ($this->adapters as $i => $adapter) {
+            $item = $adapter->getItem($key);
+
+            if ($item->isHit()) {
+                while (0 <= --$i) {
+                    $this->adapters[$i]->save($syncItem($item, $misses[$i], $this->defaultLifetime));
+                }
+
+                return $item;
+            }
+
+            $misses[$i] = $item;
+        }
+
+        return $item;
+    }
+
+    public function getItems(array $keys = []): iterable
+    {
+        return $this->generateItems($this->adapters[0]->getItems($keys), 0);
+    }
+
+    private function generateItems(iterable $items, int $adapterIndex): \Generator
+    {
+        $missing = [];
+        $misses = [];
+        $nextAdapterIndex = $adapterIndex + 1;
+        $nextAdapter = $this->adapters[$nextAdapterIndex] ?? null;
+
+        foreach ($items as $k => $item) {
+            if (!$nextAdapter || $item->isHit()) {
+                yield $k => $item;
+            } else {
+                $missing[] = $k;
+                $misses[$k] = $item;
+            }
+        }
+
+        if ($missing) {
+            $syncItem = self::$syncItem;
+            $adapter = $this->adapters[$adapterIndex];
+            $items = $this->generateItems($nextAdapter->getItems($missing), $nextAdapterIndex);
+
+            foreach ($items as $k => $item) {
+                if ($item->isHit()) {
+                    $adapter->save($syncItem($item, $misses[$k], $this->defaultLifetime));
+                }
+
+                yield $k => $item;
+            }
+        }
+    }
+
+    public function hasItem(mixed $key): bool
+    {
+        foreach ($this->adapters as $adapter) {
+            if ($adapter->hasItem($key)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public function clear(string $prefix = ''): bool
+    {
+        $cleared = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            if ($this->adapters[$i] instanceof AdapterInterface) {
+                $cleared = $this->adapters[$i]->clear($prefix) && $cleared;
+            } else {
+                $cleared = $this->adapters[$i]->clear() && $cleared;
+            }
+        }
+
+        return $cleared;
+    }
+
+    public function deleteItem(mixed $key): bool
+    {
+        $deleted = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $deleted = $this->adapters[$i]->deleteItem($key) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    public function deleteItems(array $keys): bool
+    {
+        $deleted = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $deleted = $this->adapters[$i]->deleteItems($keys) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    public function save(CacheItemInterface $item): bool
+    {
+        $saved = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $saved = $this->adapters[$i]->save($item) && $saved;
+        }
+
+        return $saved;
+    }
+
+    public function saveDeferred(CacheItemInterface $item): bool
+    {
+        $saved = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $saved = $this->adapters[$i]->saveDeferred($item) && $saved;
+        }
+
+        return $saved;
+    }
+
+    public function commit(): bool
+    {
+        $committed = true;
+        $i = $this->adapterCount;
+
+        while ($i--) {
+            $committed = $this->adapters[$i]->commit() && $committed;
+        }
+
+        return $committed;
+    }
+
+    public function prune(): bool
+    {
+        $pruned = true;
+
+        foreach ($this->adapters as $adapter) {
+            if ($adapter instanceof PruneableInterface) {
+                $pruned = $adapter->prune() && $pruned;
+            }
+        }
+
+        return $pruned;
+    }
+
+    public function withSubNamespace(string $namespace): static
+    {
+        $clone = clone $this;
+        $adapters = [];
+
+        foreach ($this->adapters as $adapter) {
+            if (!$adapter instanceof NamespacedPoolInterface) {
+                throw new BadMethodCallException('All adapters must implement NamespacedPoolInterface to support namespaces.');
+            }
+
+            $adapters[] = $adapter->withSubNamespace($namespace);
+        }
+        $clone->adapters = $adapters;
+
+        return $clone;
+    }
+
+    public function reset(): void
+    {
+        foreach ($this->adapters as $adapter) {
+            if ($adapter instanceof ResetInterface) {
+                $adapter->reset();
+            }
+        }
+    }
+}

backend/vendor/symfony/cache/Adapter/CouchbaseBucketAdapter.php

@@ -0,0 +1,237 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\Marshaller\DefaultMarshaller;
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+
+trigger_deprecation('symfony/cache', '7.1', 'The "%s" class is deprecated, use "%s" instead.', CouchbaseBucketAdapter::class, CouchbaseCollectionAdapter::class);
+
+/**
+ * @author Antonio Jose Cerezo Aranda <aj.cerezo@gmail.com>
+ *
+ * @deprecated since Symfony 7.1, use {@see CouchbaseCollectionAdapter} instead
+ */
+class CouchbaseBucketAdapter extends AbstractAdapter
+{
+    private const THIRTY_DAYS_IN_SECONDS = 2592000;
+    private const MAX_KEY_LENGTH = 250;
+    private const KEY_NOT_FOUND = 13;
+    private const VALID_DSN_OPTIONS = [
+        'operationTimeout',
+        'configTimeout',
+        'configNodeTimeout',
+        'n1qlTimeout',
+        'httpTimeout',
+        'configDelay',
+        'htconfigIdleTimeout',
+        'durabilityInterval',
+        'durabilityTimeout',
+    ];
+
+    private MarshallerInterface $marshaller;
+
+    public function __construct(
+        private \CouchbaseBucket $bucket,
+        string $namespace = '',
+        int $defaultLifetime = 0,
+        ?MarshallerInterface $marshaller = null,
+    ) {
+        if (!static::isSupported()) {
+            throw new CacheException('Couchbase >= 2.6.0 < 3.0.0 is required.');
+        }
+
+        $this->maxIdLength = static::MAX_KEY_LENGTH;
+
+        parent::__construct($namespace, $defaultLifetime);
+        $this->enableVersioning();
+        $this->marshaller = $marshaller ?? new DefaultMarshaller();
+    }
+
+    public static function createConnection(#[\SensitiveParameter] array|string $servers, array $options = []): \CouchbaseBucket
+    {
+        if (\is_string($servers)) {
+            $servers = [$servers];
+        }
+
+        if (!static::isSupported()) {
+            throw new CacheException('Couchbase >= 2.6.0 < 3.0.0 is required.');
+        }
+
+        set_error_handler(static fn ($type, $msg, $file, $line) => throw new \ErrorException($msg, 0, $type, $file, $line));
+
+        $dsnPattern = '/^(?<protocol>couchbase(?:s)?)\:\/\/(?:(?<username>[^\:]+)\:(?<password>[^\@]{6,})@)?'
+            .'(?<host>[^\:]+(?:\:\d+)?)(?:\/(?<bucketName>[^\?]+))(?:\?(?<options>.*))?$/i';
+
+        $newServers = [];
+        $protocol = 'couchbase';
+        try {
+            $options = self::initOptions($options);
+            $username = $options['username'];
+            $password = $options['password'];
+
+            foreach ($servers as $dsn) {
+                if (!str_starts_with($dsn, 'couchbase:')) {
+                    throw new InvalidArgumentException('Invalid Couchbase DSN: it does not start with "couchbase:".');
+                }
+
+                preg_match($dsnPattern, $dsn, $matches);
+
+                $username = $matches['username'] ?: $username;
+                $password = $matches['password'] ?: $password;
+                $protocol = $matches['protocol'] ?: $protocol;
+
+                if (isset($matches['options'])) {
+                    $optionsInDsn = self::getOptions($matches['options']);
+
+                    foreach ($optionsInDsn as $parameter => $value) {
+                        $options[$parameter] = $value;
+                    }
+                }
+
+                $newServers[] = $matches['host'];
+            }
+
+            $connectionString = $protocol.'://'.implode(',', $newServers);
+
+            $client = new \CouchbaseCluster($connectionString);
+            $client->authenticateAs($username, $password);
+
+            $bucket = $client->openBucket($matches['bucketName']);
+
+            unset($options['username'], $options['password']);
+            foreach ($options as $option => $value) {
+                if ($value) {
+                    $bucket->$option = $value;
+                }
+            }
+
+            return $bucket;
+        } finally {
+            restore_error_handler();
+        }
+    }
+
+    public static function isSupported(): bool
+    {
+        return \extension_loaded('couchbase') && version_compare(phpversion('couchbase'), '2.6.0', '>=') && version_compare(phpversion('couchbase'), '3.0', '<');
+    }
+
+    private static function getOptions(string $options): array
+    {
+        $results = [];
+        $optionsInArray = explode('&', $options);
+
+        foreach ($optionsInArray as $option) {
+            [$key, $value] = explode('=', $option);
+
+            if (\in_array($key, static::VALID_DSN_OPTIONS, true)) {
+                $results[$key] = $value;
+            }
+        }
+
+        return $results;
+    }
+
+    private static function initOptions(array $options): array
+    {
+        $options['username'] ??= '';
+        $options['password'] ??= '';
+        $options['operationTimeout'] ??= 0;
+        $options['configTimeout'] ??= 0;
+        $options['configNodeTimeout'] ??= 0;
+        $options['n1qlTimeout'] ??= 0;
+        $options['httpTimeout'] ??= 0;
+        $options['configDelay'] ??= 0;
+        $options['htconfigIdleTimeout'] ??= 0;
+        $options['durabilityInterval'] ??= 0;
+        $options['durabilityTimeout'] ??= 0;
+
+        return $options;
+    }
+
+    protected function doFetch(array $ids): iterable
+    {
+        $resultsCouchbase = $this->bucket->get($ids);
+
+        $results = [];
+        foreach ($resultsCouchbase as $key => $value) {
+            if (null !== $value->error) {
+                continue;
+            }
+            $results[$key] = $this->marshaller->unmarshall($value->value);
+        }
+
+        return $results;
+    }
+
+    protected function doHave(string $id): bool
+    {
+        return false !== $this->bucket->get($id);
+    }
+
+    protected function doClear(string $namespace): bool
+    {
+        if ('' === $namespace) {
+            $this->bucket->manager()->flush();
+
+            return true;
+        }
+
+        return false;
+    }
+
+    protected function doDelete(array $ids): bool
+    {
+        $results = $this->bucket->remove(array_values($ids));
+
+        foreach ($results as $key => $result) {
+            if (null !== $result->error && static::KEY_NOT_FOUND !== $result->error->getCode()) {
+                continue;
+            }
+            unset($results[$key]);
+        }
+
+        return 0 === \count($results);
+    }
+
+    protected function doSave(array $values, int $lifetime): array|bool
+    {
+        if (!$values = $this->marshaller->marshall($values, $failed)) {
+            return $failed;
+        }
+
+        $lifetime = $this->normalizeExpiry($lifetime);
+
+        $ko = [];
+        foreach ($values as $key => $value) {
+            $result = $this->bucket->upsert($key, $value, ['expiry' => $lifetime]);
+
+            if (null !== $result->error) {
+                $ko[$key] = $result;
+            }
+        }
+
+        return [] === $ko ? true : $ko;
+    }
+
+    private function normalizeExpiry(int $expiry): int
+    {
+        if ($expiry && $expiry > static::THIRTY_DAYS_IN_SECONDS) {
+            $expiry += time();
+        }
+
+        return $expiry;
+    }
+}

backend/vendor/symfony/cache/Adapter/CouchbaseCollectionAdapter.php

@@ -0,0 +1,198 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Couchbase\Bucket;
+use Couchbase\Cluster;
+use Couchbase\ClusterOptions;
+use Couchbase\Collection;
+use Couchbase\DocumentNotFoundException;
+use Couchbase\UpsertOptions;
+use Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\Marshaller\DefaultMarshaller;
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+
+/**
+ * @author Antonio Jose Cerezo Aranda <aj.cerezo@gmail.com>
+ */
+class CouchbaseCollectionAdapter extends AbstractAdapter
+{
+    private const MAX_KEY_LENGTH = 250;
+
+    private MarshallerInterface $marshaller;
+
+    public function __construct(
+        private Collection $connection,
+        string $namespace = '',
+        int $defaultLifetime = 0,
+        ?MarshallerInterface $marshaller = null,
+    ) {
+        if (!static::isSupported()) {
+            throw new CacheException('Couchbase >= 3.0.5 < 4.0.0 is required.');
+        }
+
+        $this->maxIdLength = static::MAX_KEY_LENGTH;
+
+        parent::__construct($namespace, $defaultLifetime);
+        $this->enableVersioning();
+        $this->marshaller = $marshaller ?? new DefaultMarshaller();
+    }
+
+    public static function createConnection(#[\SensitiveParameter] array|string $dsn, array $options = []): Bucket|Collection
+    {
+        if (\is_string($dsn)) {
+            $dsn = [$dsn];
+        }
+
+        if (!static::isSupported()) {
+            throw new CacheException('Couchbase >= 3.0.5 < 4.0.0 is required.');
+        }
+
+        set_error_handler(static fn ($type, $msg, $file, $line) => throw new \ErrorException($msg, 0, $type, $file, $line));
+
+        $pathPattern = '/^(?:\/(?<bucketName>[^\/\?]+))(?:(?:\/(?<scopeName>[^\/]+))(?:\/(?<collectionName>[^\/\?]+)))?(?:\/)?$/';
+        $newServers = [];
+        $protocol = 'couchbase';
+        try {
+            $username = $options['username'] ?? '';
+            $password = $options['password'] ?? '';
+
+            foreach ($dsn as $server) {
+                if (!str_starts_with($server, 'couchbase:')) {
+                    throw new InvalidArgumentException('Invalid Couchbase DSN: it does not start with "couchbase:".');
+                }
+
+                $params = parse_url($server);
+
+                $username = isset($params['user']) ? rawurldecode($params['user']) : $username;
+                $password = isset($params['pass']) ? rawurldecode($params['pass']) : $password;
+                $protocol = $params['scheme'] ?? $protocol;
+
+                if (isset($params['query'])) {
+                    $optionsInDsn = self::getOptions($params['query']);
+
+                    foreach ($optionsInDsn as $parameter => $value) {
+                        $options[$parameter] = $value;
+                    }
+                }
+
+                $newServers[] = $params['host'];
+            }
+
+            $option = isset($params['query']) ? '?'.$params['query'] : '';
+            $connectionString = $protocol.'://'.implode(',', $newServers).$option;
+
+            $clusterOptions = new ClusterOptions();
+            $clusterOptions->credentials($username, $password);
+
+            $client = new Cluster($connectionString, $clusterOptions);
+
+            preg_match($pathPattern, $params['path'] ?? '', $matches);
+            $bucket = $client->bucket($matches['bucketName']);
+            $collection = $bucket->defaultCollection();
+            if (!empty($matches['scopeName'])) {
+                $scope = $bucket->scope($matches['scopeName']);
+                $collection = $scope->collection($matches['collectionName']);
+            }
+
+            return $collection;
+        } finally {
+            restore_error_handler();
+        }
+    }
+
+    public static function isSupported(): bool
+    {
+        return \extension_loaded('couchbase') && version_compare(phpversion('couchbase'), '3.0.5', '>=') && version_compare(phpversion('couchbase'), '4.0', '<');
+    }
+
+    private static function getOptions(string $options): array
+    {
+        $results = [];
+        $optionsInArray = explode('&', $options);
+
+        foreach ($optionsInArray as $option) {
+            [$key, $value] = explode('=', $option);
+
+            $results[$key] = $value;
+        }
+
+        return $results;
+    }
+
+    protected function doFetch(array $ids): array
+    {
+        $results = [];
+        foreach ($ids as $id) {
+            try {
+                $resultCouchbase = $this->connection->get($id);
+            } catch (DocumentNotFoundException) {
+                continue;
+            }
+
+            $content = $resultCouchbase->value ?? $resultCouchbase->content();
+
+            $results[$id] = $this->marshaller->unmarshall($content);
+        }
+
+        return $results;
+    }
+
+    protected function doHave($id): bool
+    {
+        return $this->connection->exists($id)->exists();
+    }
+
+    protected function doClear($namespace): bool
+    {
+        return false;
+    }
+
+    protected function doDelete(array $ids): bool
+    {
+        $idsErrors = [];
+        foreach ($ids as $id) {
+            try {
+                $result = $this->connection->remove($id);
+
+                if (null === $result->mutationToken()) {
+                    $idsErrors[] = $id;
+                }
+            } catch (DocumentNotFoundException) {
+            }
+        }
+
+        return 0 === \count($idsErrors);
+    }
+
+    protected function doSave(array $values, $lifetime): array|bool
+    {
+        if (!$values = $this->marshaller->marshall($values, $failed)) {
+            return $failed;
+        }
+
+        $upsertOptions = new UpsertOptions();
+        $upsertOptions->expiry($lifetime);
+
+        $ko = [];
+        foreach ($values as $key => $value) {
+            try {
+                $this->connection->upsert($key, $value, $upsertOptions);
+            } catch (\Exception) {
+                $ko[$key] = '';
+            }
+        }
+
+        return [] === $ko ? true : $ko;
+    }
+}

backend/vendor/symfony/cache/Adapter/DoctrineDbalAdapter.php

@@ -0,0 +1,424 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Doctrine\DBAL\ArrayParameterType;
+use Doctrine\DBAL\Configuration;
+use Doctrine\DBAL\Connection;
+use Doctrine\DBAL\DriverManager;
+use Doctrine\DBAL\Exception as DBALException;
+use Doctrine\DBAL\Exception\TableNotFoundException;
+use Doctrine\DBAL\ParameterType;
+use Doctrine\DBAL\Platforms\AbstractMySQLPlatform;
+use Doctrine\DBAL\Platforms\OraclePlatform;
+use Doctrine\DBAL\Platforms\PostgreSQLPlatform;
+use Doctrine\DBAL\Platforms\SQLServerPlatform;
+use Doctrine\DBAL\Schema\DefaultSchemaManagerFactory;
+use Doctrine\DBAL\Schema\Name\Identifier;
+use Doctrine\DBAL\Schema\Name\UnqualifiedName;
+use Doctrine\DBAL\Schema\PrimaryKeyConstraint;
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\DBAL\Tools\DsnParser;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\Marshaller\DefaultMarshaller;
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+use Symfony\Component\Cache\PruneableInterface;
+
+class DoctrineDbalAdapter extends AbstractAdapter implements PruneableInterface
+{
+    private const MAX_KEY_LENGTH = 255;
+
+    private static int $savepointCounter = 0;
+
+    private MarshallerInterface $marshaller;
+    private Connection $conn;
+    private string $platformName;
+    private string $table = 'cache_items';
+    private string $idCol = 'item_id';
+    private string $dataCol = 'item_data';
+    private string $lifetimeCol = 'item_lifetime';
+    private string $timeCol = 'item_time';
+
+    /**
+     * You can either pass an existing database Doctrine DBAL Connection or
+     * a DSN string that will be used to connect to the database.
+     *
+     * The cache table is created automatically when possible.
+     * Otherwise, use the createTable() method.
+     *
+     * List of available options:
+     *  * db_table: The name of the table [default: cache_items]
+     *  * db_id_col: The column where to store the cache id [default: item_id]
+     *  * db_data_col: The column where to store the cache data [default: item_data]
+     *  * db_lifetime_col: The column where to store the lifetime [default: item_lifetime]
+     *  * db_time_col: The column where to store the timestamp [default: item_time]
+     *
+     * @throws InvalidArgumentException When namespace contains invalid characters
+     */
+    public function __construct(
+        Connection|string $connOrDsn,
+        private string $namespace = '',
+        int $defaultLifetime = 0,
+        array $options = [],
+        ?MarshallerInterface $marshaller = null,
+    ) {
+        if (isset($namespace[0]) && preg_match('#[^-+.A-Za-z0-9]#', $namespace, $match)) {
+            throw new InvalidArgumentException(\sprintf('Namespace contains "%s" but only characters in [-+.A-Za-z0-9] are allowed.', $match[0]));
+        }
+
+        if ($connOrDsn instanceof Connection) {
+            $this->conn = $connOrDsn;
+        } else {
+            if (!class_exists(DriverManager::class)) {
+                throw new InvalidArgumentException('Failed to parse DSN. Try running "composer require doctrine/dbal".');
+            }
+            $params = (new DsnParser([
+                'db2' => 'ibm_db2',
+                'mssql' => 'pdo_sqlsrv',
+                'mysql' => 'pdo_mysql',
+                'mysql2' => 'pdo_mysql',
+                'postgres' => 'pdo_pgsql',
+                'postgresql' => 'pdo_pgsql',
+                'pgsql' => 'pdo_pgsql',
+                'sqlite' => 'pdo_sqlite',
+                'sqlite3' => 'pdo_sqlite',
+            ]))->parse($connOrDsn);
+
+            $config = new Configuration();
+            $config->setSchemaManagerFactory(new DefaultSchemaManagerFactory());
+
+            $this->conn = DriverManager::getConnection($params, $config);
+        }
+
+        $this->maxIdLength = self::MAX_KEY_LENGTH;
+        $this->table = $options['db_table'] ?? $this->table;
+        $this->idCol = $options['db_id_col'] ?? $this->idCol;
+        $this->dataCol = $options['db_data_col'] ?? $this->dataCol;
+        $this->lifetimeCol = $options['db_lifetime_col'] ?? $this->lifetimeCol;
+        $this->timeCol = $options['db_time_col'] ?? $this->timeCol;
+        $this->marshaller = $marshaller ?? new DefaultMarshaller();
+
+        parent::__construct($namespace, $defaultLifetime);
+    }
+
+    /**
+     * Creates the table to store cache items which can be called once for setup.
+     *
+     * Cache ID are saved in a column of maximum length 255. Cache data is
+     * saved in a BLOB.
+     *
+     * @throws DBALException When the table already exists
+     */
+    public function createTable(): void
+    {
+        $schema = new Schema();
+        $this->addTableToSchema($schema);
+
+        foreach ($schema->toSql($this->conn->getDatabasePlatform()) as $sql) {
+            $this->conn->executeStatement($sql);
+        }
+    }
+
+    public function configureSchema(Schema $schema, Connection $forConnection, \Closure $isSameDatabase): void
+    {
+        if ($schema->hasTable($this->table)) {
+            return;
+        }
+
+        if ($forConnection !== $this->conn && !$isSameDatabase($this->conn->executeStatement(...))) {
+            return;
+        }
+
+        $this->addTableToSchema($schema);
+    }
+
+    public function prune(): bool
+    {
+        $deleteSql = "DELETE FROM $this->table WHERE $this->lifetimeCol + $this->timeCol <= ?";
+        $params = [time()];
+        $paramTypes = [ParameterType::INTEGER];
+
+        if ('' !== $this->namespace) {
+            $deleteSql .= " AND $this->idCol LIKE ?";
+            $params[] = \sprintf('%s%%', $this->namespace);
+            $paramTypes[] = ParameterType::STRING;
+        }
+
+        try {
+            $this->conn->executeStatement($deleteSql, $params, $paramTypes);
+        } catch (TableNotFoundException) {
+        }
+
+        return true;
+    }
+
+    protected function doFetch(array $ids): iterable
+    {
+        $now = time();
+        $expired = [];
+
+        $sql = "SELECT $this->idCol, CASE WHEN $this->lifetimeCol IS NULL OR $this->lifetimeCol + $this->timeCol > ? THEN $this->dataCol ELSE NULL END FROM $this->table WHERE $this->idCol IN (?)";
+        $result = $this->conn->executeQuery($sql, [
+            $now,
+            $ids,
+        ], [
+            ParameterType::INTEGER,
+            ArrayParameterType::STRING,
+        ])->iterateNumeric();
+
+        foreach ($result as $row) {
+            if (null === $row[1]) {
+                $expired[] = $row[0];
+            } else {
+                yield $row[0] => $this->marshaller->unmarshall(\is_resource($row[1]) ? stream_get_contents($row[1]) : $row[1]);
+            }
+        }
+
+        if ($expired) {
+            $sql = "DELETE FROM $this->table WHERE $this->lifetimeCol + $this->timeCol <= ? AND $this->idCol IN (?)";
+            $this->conn->executeStatement($sql, [
+                $now,
+                $expired,
+            ], [
+                ParameterType::INTEGER,
+                ArrayParameterType::STRING,
+            ]);
+        }
+    }
+
+    protected function doHave(string $id): bool
+    {
+        $sql = "SELECT 1 FROM $this->table WHERE $this->idCol = ? AND ($this->lifetimeCol IS NULL OR $this->lifetimeCol + $this->timeCol > ?)";
+        $result = $this->conn->executeQuery($sql, [
+            $id,
+            time(),
+        ], [
+            ParameterType::STRING,
+            ParameterType::INTEGER,
+        ]);
+
+        return (bool) $result->fetchOne();
+    }
+
+    protected function doClear(string $namespace): bool
+    {
+        if ('' === $namespace) {
+            $sql = $this->conn->getDatabasePlatform()->getTruncateTableSQL($this->table);
+        } else {
+            $sql = "DELETE FROM $this->table WHERE $this->idCol LIKE '$namespace%'";
+        }
+
+        try {
+            $this->conn->executeStatement($sql);
+        } catch (TableNotFoundException) {
+        }
+
+        return true;
+    }
+
+    protected function doDelete(array $ids): bool
+    {
+        $sql = "DELETE FROM $this->table WHERE $this->idCol IN (?)";
+        try {
+            $this->conn->executeStatement($sql, [array_values($ids)], [ArrayParameterType::STRING]);
+        } catch (TableNotFoundException) {
+        }
+
+        return true;
+    }
+
+    protected function doSave(array $values, int $lifetime): array|bool
+    {
+        if (!$values = $this->marshaller->marshall($values, $failed)) {
+            return $failed;
+        }
+
+        if ($this->conn->isTransactionActive() && $this->conn->getDatabasePlatform()->supportsSavepoints()) {
+            $savepoint = 'cache_save_'.++self::$savepointCounter;
+            try {
+                $this->conn->createSavepoint($savepoint);
+                $failed = $this->doSaveInner($values, $lifetime, $failed);
+                $this->conn->releaseSavepoint($savepoint);
+
+                return $failed;
+            } catch (\Throwable $e) {
+                $this->conn->rollbackSavepoint($savepoint);
+
+                throw $e;
+            }
+        }
+
+        return $this->doSaveInner($values, $lifetime, $failed);
+    }
+
+    private function doSaveInner(array $values, int $lifetime, array $failed): array|bool
+    {
+        $platformName = $this->getPlatformName();
+        $insertSql = "INSERT INTO $this->table ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (?, ?, ?, ?)";
+
+        switch ($platformName) {
+            case 'mysql':
+                $sql = $insertSql." ON DUPLICATE KEY UPDATE $this->dataCol = VALUES($this->dataCol), $this->lifetimeCol = VALUES($this->lifetimeCol), $this->timeCol = VALUES($this->timeCol)";
+                break;
+            case 'oci':
+                // DUAL is Oracle specific dummy table
+                $sql = "MERGE INTO $this->table USING DUAL ON ($this->idCol = ?) ".
+                    "WHEN NOT MATCHED THEN INSERT ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (?, ?, ?, ?) ".
+                    "WHEN MATCHED THEN UPDATE SET $this->dataCol = ?, $this->lifetimeCol = ?, $this->timeCol = ?";
+                break;
+            case 'sqlsrv':
+                // MERGE is only available since SQL Server 2008 and must be terminated by semicolon
+                // It also requires HOLDLOCK according to http://weblogs.sqlteam.com/dang/archive/2009/01/31/UPSERT-Race-Condition-With-MERGE.aspx
+                $sql = "MERGE INTO $this->table WITH (HOLDLOCK) USING (SELECT 1 AS dummy) AS src ON ($this->idCol = ?) ".
+                    "WHEN NOT MATCHED THEN INSERT ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (?, ?, ?, ?) ".
+                    "WHEN MATCHED THEN UPDATE SET $this->dataCol = ?, $this->lifetimeCol = ?, $this->timeCol = ?;";
+                break;
+            case 'sqlite':
+                $sql = 'INSERT OR REPLACE'.substr($insertSql, 6);
+                break;
+            case 'pgsql':
+                $sql = $insertSql." ON CONFLICT ($this->idCol) DO UPDATE SET ($this->dataCol, $this->lifetimeCol, $this->timeCol) = (EXCLUDED.$this->dataCol, EXCLUDED.$this->lifetimeCol, EXCLUDED.$this->timeCol)";
+                break;
+            default:
+                $platformName = null;
+                $sql = "UPDATE $this->table SET $this->dataCol = ?, $this->lifetimeCol = ?, $this->timeCol = ? WHERE $this->idCol = ?";
+                break;
+        }
+
+        $now = time();
+        $lifetime = $lifetime ?: null;
+        try {
+            $stmt = $this->conn->prepare($sql);
+        } catch (TableNotFoundException) {
+            if (!$this->conn->isTransactionActive() || \in_array($platformName, ['pgsql', 'sqlite', 'sqlsrv'], true)) {
+                $this->createTable();
+            }
+            $stmt = $this->conn->prepare($sql);
+        }
+
+        if ('sqlsrv' === $platformName || 'oci' === $platformName) {
+            $bind = static function ($id, $data) use ($stmt) {
+                $stmt->bindValue(1, $id);
+                $stmt->bindValue(2, $id);
+                $stmt->bindValue(3, $data, ParameterType::LARGE_OBJECT);
+                $stmt->bindValue(6, $data, ParameterType::LARGE_OBJECT);
+            };
+            $stmt->bindValue(4, $lifetime, ParameterType::INTEGER);
+            $stmt->bindValue(5, $now, ParameterType::INTEGER);
+            $stmt->bindValue(7, $lifetime, ParameterType::INTEGER);
+            $stmt->bindValue(8, $now, ParameterType::INTEGER);
+        } elseif (null !== $platformName) {
+            $bind = static function ($id, $data) use ($stmt) {
+                $stmt->bindValue(1, $id);
+                $stmt->bindValue(2, $data, ParameterType::LARGE_OBJECT);
+            };
+            $stmt->bindValue(3, $lifetime, ParameterType::INTEGER);
+            $stmt->bindValue(4, $now, ParameterType::INTEGER);
+        } else {
+            $stmt->bindValue(2, $lifetime, ParameterType::INTEGER);
+            $stmt->bindValue(3, $now, ParameterType::INTEGER);
+
+            $insertStmt = $this->conn->prepare($insertSql);
+            $insertStmt->bindValue(3, $lifetime, ParameterType::INTEGER);
+            $insertStmt->bindValue(4, $now, ParameterType::INTEGER);
+
+            $bind = static function ($id, $data) use ($stmt, $insertStmt) {
+                $stmt->bindValue(1, $data, ParameterType::LARGE_OBJECT);
+                $stmt->bindValue(4, $id);
+                $insertStmt->bindValue(1, $id);
+                $insertStmt->bindValue(2, $data, ParameterType::LARGE_OBJECT);
+            };
+        }
+
+        foreach ($values as $id => $data) {
+            $bind($id, $data);
+            try {
+                $rowCount = $stmt->executeStatement();
+            } catch (TableNotFoundException) {
+                if (!$this->conn->isTransactionActive() || \in_array($platformName, ['pgsql', 'sqlite', 'sqlsrv'], true)) {
+                    $this->createTable();
+                }
+                $rowCount = $stmt->executeStatement();
+            }
+            if (null === $platformName && 0 === $rowCount) {
+                try {
+                    $insertStmt->executeStatement();
+                } catch (DBALException) {
+                    // A concurrent write won, let it be
+                }
+            }
+        }
+
+        return $failed;
+    }
+
+    /**
+     * @internal
+     */
+    protected function getId(mixed $key, ?string $namespace = null): string
+    {
+        if ('pgsql' !== $this->platformName ??= $this->getPlatformName()) {
+            return parent::getId($key, $namespace);
+        }
+
+        if (str_contains($key, "\0") || str_contains($key, '%') || !preg_match('//u', $key)) {
+            $key = rawurlencode($key);
+        }
+
+        return parent::getId($key, $namespace);
+    }
+
+    private function getPlatformName(): string
+    {
+        if (isset($this->platformName)) {
+            return $this->platformName;
+        }
+
+        $platform = $this->conn->getDatabasePlatform();
+
+        if (interface_exists(DBALException::class)) {
+            // DBAL 4+
+            $sqlitePlatformClass = 'Doctrine\DBAL\Platforms\SQLitePlatform';
+        } else {
+            $sqlitePlatformClass = 'Doctrine\DBAL\Platforms\SqlitePlatform';
+        }
+
+        return $this->platformName = match (true) {
+            $platform instanceof AbstractMySQLPlatform => 'mysql',
+            $platform instanceof $sqlitePlatformClass => 'sqlite',
+            $platform instanceof PostgreSQLPlatform => 'pgsql',
+            $platform instanceof OraclePlatform => 'oci',
+            $platform instanceof SQLServerPlatform => 'sqlsrv',
+            default => $platform::class,
+        };
+    }
+
+    private function addTableToSchema(Schema $schema): void
+    {
+        $types = [
+            'mysql' => 'binary',
+            'sqlite' => 'text',
+        ];
+
+        $table = $schema->createTable($this->table);
+        $table->addColumn($this->idCol, $types[$this->getPlatformName()] ?? 'string', ['length' => 255]);
+        $table->addColumn($this->dataCol, 'blob', ['length' => 16777215]);
+        $table->addColumn($this->lifetimeCol, 'integer', ['unsigned' => true, 'notnull' => false]);
+        $table->addColumn($this->timeCol, 'integer', ['unsigned' => true]);
+
+        if (class_exists(PrimaryKeyConstraint::class)) {
+            $table->addPrimaryKeyConstraint(new PrimaryKeyConstraint(null, [new UnqualifiedName(Identifier::unquoted($this->idCol))], true));
+        } else {
+            $table->setPrimaryKey([$this->idCol]);
+        }
+    }
+}

backend/vendor/symfony/cache/Adapter/FilesystemAdapter.php

@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\Marshaller\DefaultMarshaller;
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\FilesystemTrait;
+
+class FilesystemAdapter extends AbstractAdapter implements PruneableInterface
+{
+    use FilesystemTrait;
+
+    public function __construct(string $namespace = '', int $defaultLifetime = 0, ?string $directory = null, ?MarshallerInterface $marshaller = null)
+    {
+        $this->marshaller = $marshaller ?? new DefaultMarshaller();
+        parent::__construct('', $defaultLifetime);
+        $this->init($namespace, $directory);
+    }
+}

backend/vendor/symfony/cache/Adapter/FilesystemTagAwareAdapter.php

@@ -0,0 +1,267 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+use Symfony\Component\Cache\Marshaller\TagAwareMarshaller;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\FilesystemTrait;
+
+/**
+ * Stores tag id <> cache id relationship as a symlink, and lookup on invalidation calls.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ * @author André Rømcke <andre.romcke+symfony@gmail.com>
+ */
+class FilesystemTagAwareAdapter extends AbstractTagAwareAdapter implements PruneableInterface
+{
+    use FilesystemTrait {
+        prune as private doPrune;
+        doClear as private doClearCache;
+        doSave as private doSaveCache;
+    }
+
+    /**
+     * Folder used for tag symlinks.
+     */
+    private const TAG_FOLDER = 'tags';
+
+    public function __construct(string $namespace = '', int $defaultLifetime = 0, ?string $directory = null, ?MarshallerInterface $marshaller = null)
+    {
+        $this->marshaller = new TagAwareMarshaller($marshaller);
+        parent::__construct('', $defaultLifetime);
+        $this->init($namespace, $directory);
+    }
+
+    public function prune(): bool
+    {
+        $ok = $this->doPrune();
+
+        set_error_handler(static function () {});
+        $chars = '+-ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
+
+        try {
+            foreach ($this->scanHashDir($this->directory.self::TAG_FOLDER.\DIRECTORY_SEPARATOR) as $dir) {
+                $dir .= \DIRECTORY_SEPARATOR;
+                $keepDir = false;
+                for ($i = 0; $i < 38; ++$i) {
+                    if (!is_dir($dir.$chars[$i])) {
+                        continue;
+                    }
+                    for ($j = 0; $j < 38; ++$j) {
+                        if (!is_dir($d = $dir.$chars[$i].\DIRECTORY_SEPARATOR.$chars[$j])) {
+                            continue;
+                        }
+                        foreach (scandir($d, \SCANDIR_SORT_NONE) ?: [] as $link) {
+                            if ('.' === $link || '..' === $link) {
+                                continue;
+                            }
+                            if ('_' !== $dir[-2] && realpath($d.\DIRECTORY_SEPARATOR.$link)) {
+                                $keepDir = true;
+                            } else {
+                                unlink($d.\DIRECTORY_SEPARATOR.$link);
+                            }
+                        }
+                        $keepDir ?: rmdir($d);
+                    }
+                    $keepDir ?: rmdir($dir.$chars[$i]);
+                }
+                $keepDir ?: rmdir($dir);
+            }
+        } finally {
+            restore_error_handler();
+        }
+
+        return $ok;
+    }
+
+    protected function doClear(string $namespace): bool
+    {
+        $ok = $this->doClearCache($namespace);
+
+        if ('' !== $namespace) {
+            return $ok;
+        }
+
+        set_error_handler(static function () {});
+        $chars = '+-ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
+
+        $this->tmpSuffix ??= str_replace('/', '-', base64_encode(random_bytes(6)));
+
+        try {
+            foreach ($this->scanHashDir($this->directory.self::TAG_FOLDER.\DIRECTORY_SEPARATOR) as $dir) {
+                if (rename($dir, $renamed = substr_replace($dir, $this->tmpSuffix.'_', -9))) {
+                    $dir = $renamed.\DIRECTORY_SEPARATOR;
+                } else {
+                    $dir .= \DIRECTORY_SEPARATOR;
+                    $renamed = null;
+                }
+
+                for ($i = 0; $i < 38; ++$i) {
+                    if (!is_dir($dir.$chars[$i])) {
+                        continue;
+                    }
+                    for ($j = 0; $j < 38; ++$j) {
+                        if (!is_dir($d = $dir.$chars[$i].\DIRECTORY_SEPARATOR.$chars[$j])) {
+                            continue;
+                        }
+                        foreach (scandir($d, \SCANDIR_SORT_NONE) ?: [] as $link) {
+                            if ('.' !== $link && '..' !== $link && (null !== $renamed || !realpath($d.\DIRECTORY_SEPARATOR.$link))) {
+                                unlink($d.\DIRECTORY_SEPARATOR.$link);
+                            }
+                        }
+                        null === $renamed ?: rmdir($d);
+                    }
+                    null === $renamed ?: rmdir($dir.$chars[$i]);
+                }
+                null === $renamed ?: rmdir($renamed);
+            }
+        } finally {
+            restore_error_handler();
+        }
+
+        return $ok;
+    }
+
+    protected function doSave(array $values, int $lifetime, array $addTagData = [], array $removeTagData = []): array
+    {
+        $failed = $this->doSaveCache($values, $lifetime);
+
+        // Add Tags as symlinks
+        foreach ($addTagData as $tagId => $ids) {
+            $tagFolder = $this->getTagFolder($tagId);
+            foreach ($ids as $id) {
+                if ($failed && \in_array($id, $failed, true)) {
+                    continue;
+                }
+
+                $file = $this->getFile($id);
+
+                if (!@symlink($file, $tagLink = $this->getFile($id, true, $tagFolder)) && !is_link($tagLink)) {
+                    @unlink($file);
+                    $failed[] = $id;
+                }
+            }
+        }
+
+        // Unlink removed Tags
+        foreach ($removeTagData as $tagId => $ids) {
+            $tagFolder = $this->getTagFolder($tagId);
+            foreach ($ids as $id) {
+                if ($failed && \in_array($id, $failed, true)) {
+                    continue;
+                }
+
+                @unlink($this->getFile($id, false, $tagFolder));
+            }
+        }
+
+        return $failed;
+    }
+
+    protected function doDeleteYieldTags(array $ids): iterable
+    {
+        foreach ($ids as $id) {
+            $file = $this->getFile($id);
+            if (!is_file($file) || !$h = @fopen($file, 'r')) {
+                continue;
+            }
+
+            if (!@unlink($file)) {
+                fclose($h);
+                continue;
+            }
+
+            $meta = explode("\n", fread($h, 4096), 3)[2] ?? '';
+
+            // detect the compact format used in marshall() using magic numbers in the form 9D-..-..-..-..-00-..-..-..-5F
+            if (13 < \strlen($meta) && "\x9D" === $meta[0] && "\0" === $meta[5] && "\x5F" === $meta[9]) {
+                $meta[9] = "\0";
+                $tagLen = unpack('Nlen', $meta, 9)['len'];
+                $meta = substr($meta, 13, $tagLen);
+
+                if (0 < $tagLen -= \strlen($meta)) {
+                    $meta .= fread($h, $tagLen);
+                }
+
+                try {
+                    yield $id => '' === $meta ? [] : $this->marshaller->unmarshall($meta);
+                } catch (\Exception) {
+                    yield $id => [];
+                }
+            }
+
+            fclose($h);
+        }
+    }
+
+    protected function doDeleteTagRelations(array $tagData): bool
+    {
+        foreach ($tagData as $tagId => $idList) {
+            $tagFolder = $this->getTagFolder($tagId);
+            foreach ($idList as $id) {
+                @unlink($this->getFile($id, false, $tagFolder));
+            }
+        }
+
+        return true;
+    }
+
+    protected function doInvalidate(array $tagIds): bool
+    {
+        foreach ($tagIds as $tagId) {
+            if (!is_dir($tagFolder = $this->getTagFolder($tagId))) {
+                continue;
+            }
+
+            $this->tmpSuffix ??= str_replace('/', '-', base64_encode(random_bytes(6)));
+
+            set_error_handler(static function () {});
+
+            try {
+                if (rename($tagFolder, $renamed = substr_replace($tagFolder, $this->tmpSuffix.'_', -10))) {
+                    $tagFolder = $renamed.\DIRECTORY_SEPARATOR;
+                } else {
+                    $renamed = null;
+                }
+
+                foreach ($this->scanHashDir($tagFolder) as $itemLink) {
+                    unlink(realpath($itemLink) ?: $itemLink);
+                    unlink($itemLink);
+                }
+
+                if (null === $renamed) {
+                    continue;
+                }
+
+                $chars = '+-ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
+
+                for ($i = 0; $i < 38; ++$i) {
+                    for ($j = 0; $j < 38; ++$j) {
+                        rmdir($tagFolder.$chars[$i].\DIRECTORY_SEPARATOR.$chars[$j]);
+                    }
+                    rmdir($tagFolder.$chars[$i]);
+                }
+                rmdir($renamed);
+            } finally {
+                restore_error_handler();
+            }
+        }
+
+        return true;
+    }
+
+    private function getTagFolder(string $tagId): string
+    {
+        return $this->getFile($tagId, false, $this->directory.self::TAG_FOLDER.\DIRECTORY_SEPARATOR).\DIRECTORY_SEPARATOR;
+    }
+}

backend/vendor/symfony/cache/Adapter/MemcachedAdapter.php

@@ -0,0 +1,330 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\Marshaller\DefaultMarshaller;
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+use Symfony\Contracts\Cache\ItemInterface;
+
+/**
+ * @author Rob Frawley 2nd <rmf@src.run>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class MemcachedAdapter extends AbstractAdapter
+{
+    /**
+     * We are replacing characters that are illegal in Memcached keys with reserved characters from
+     * {@see ItemInterface::RESERVED_CHARACTERS} that are legal in Memcached.
+     * Note: don’t use {@see AbstractAdapter::NS_SEPARATOR}.
+     */
+    private const RESERVED_MEMCACHED = " \n\r\t\v\f\0";
+    private const RESERVED_PSR6 = '@()\{}/';
+    private const MAX_KEY_LENGTH = 250;
+
+    private MarshallerInterface $marshaller;
+    private \Memcached $client;
+    private \Memcached $lazyClient;
+
+    /**
+     * Using a MemcachedAdapter with a TagAwareAdapter for storing tags is discouraged.
+     * Using a RedisAdapter is recommended instead. If you cannot do otherwise, be aware that:
+     * - the Memcached::OPT_BINARY_PROTOCOL must be enabled
+     *   (that's the default when using MemcachedAdapter::createConnection());
+     * - tags eviction by Memcached's LRU algorithm will break by-tags invalidation;
+     *   your Memcached memory should be large enough to never trigger LRU.
+     *
+     * Using a MemcachedAdapter as a pure items store is fine.
+     */
+    public function __construct(\Memcached $client, string $namespace = '', int $defaultLifetime = 0, ?MarshallerInterface $marshaller = null)
+    {
+        if (!static::isSupported()) {
+            throw new CacheException('Memcached > 3.1.5 is required.');
+        }
+        $this->maxIdLength = self::MAX_KEY_LENGTH;
+
+        if ('Memcached' === $client::class) {
+            $opt = $client->getOption(\Memcached::OPT_SERIALIZER);
+            if (\Memcached::SERIALIZER_PHP !== $opt && \Memcached::SERIALIZER_IGBINARY !== $opt) {
+                throw new CacheException('MemcachedAdapter: "serializer" option must be "php" or "igbinary".');
+            }
+            $this->maxIdLength -= \strlen($client->getOption(\Memcached::OPT_PREFIX_KEY));
+            $this->client = $client;
+        } else {
+            $this->lazyClient = $client;
+        }
+
+        parent::__construct($namespace, $defaultLifetime);
+        $this->enableVersioning();
+        $this->marshaller = $marshaller ?? new DefaultMarshaller();
+    }
+
+    public static function isSupported(): bool
+    {
+        return \extension_loaded('memcached') && version_compare(phpversion('memcached'), '3.1.6', '>=');
+    }
+
+    /**
+     * Creates a Memcached instance.
+     *
+     * By default, the binary protocol, no block, and libketama compatible options are enabled.
+     *
+     * Examples for servers:
+     * - 'memcached://user:pass@localhost?weight=33'
+     * - [['localhost', 11211, 33]]
+     *
+     * @param array[]|string|string[] $servers An array of servers, a DSN, or an array of DSNs
+     *
+     * @throws \ErrorException When invalid options or servers are provided
+     */
+    public static function createConnection(#[\SensitiveParameter] array|string $servers, array $options = []): \Memcached
+    {
+        if (\is_string($servers)) {
+            $servers = [$servers];
+        }
+        if (!static::isSupported()) {
+            throw new CacheException('Memcached > 3.1.5 is required.');
+        }
+        set_error_handler(static fn ($type, $msg, $file, $line) => throw new \ErrorException($msg, 0, $type, $file, $line));
+        try {
+            $client = new \Memcached($options['persistent_id'] ?? null);
+            $username = $options['username'] ?? null;
+            $password = $options['password'] ?? null;
+
+            // parse any DSN in $servers
+            foreach ($servers as $i => $dsn) {
+                if (\is_array($dsn)) {
+                    continue;
+                }
+                if (!str_starts_with($dsn, 'memcached:')) {
+                    throw new InvalidArgumentException('Invalid Memcached DSN: it does not start with "memcached:".');
+                }
+                $params = preg_replace_callback('#^memcached:(//)?(?:([^@]*+)@)?#', function ($m) use (&$username, &$password) {
+                    if (!empty($m[2])) {
+                        [$username, $password] = explode(':', $m[2], 2) + [1 => null];
+                        $username = rawurldecode($username);
+                        $password = null !== $password ? rawurldecode($password) : null;
+                    }
+
+                    return 'file:'.($m[1] ?? '');
+                }, $dsn);
+                if (false === $params = parse_url($params)) {
+                    throw new InvalidArgumentException('Invalid Memcached DSN.');
+                }
+                $query = $hosts = [];
+                if (isset($params['query'])) {
+                    parse_str($params['query'], $query);
+
+                    if (isset($query['host'])) {
+                        if (!\is_array($hosts = $query['host'])) {
+                            throw new InvalidArgumentException('Invalid Memcached DSN: query parameter "host" must be an array.');
+                        }
+                        foreach ($hosts as $host => $weight) {
+                            if (false === $port = strrpos($host, ':')) {
+                                $hosts[$host] = [$host, 11211, (int) $weight];
+                            } else {
+                                $hosts[$host] = [substr($host, 0, $port), (int) substr($host, 1 + $port), (int) $weight];
+                            }
+                        }
+                        $hosts = array_values($hosts);
+                        unset($query['host']);
+                    }
+                    if ($hosts && !isset($params['host']) && !isset($params['path'])) {
+                        unset($servers[$i]);
+                        $servers = array_merge($servers, $hosts);
+                        continue;
+                    }
+                }
+                if (!isset($params['host']) && !isset($params['path'])) {
+                    throw new InvalidArgumentException('Invalid Memcached DSN: missing host or path.');
+                }
+                if (isset($params['path']) && preg_match('#/(\d+)$#', $params['path'], $m)) {
+                    $params['weight'] = $m[1];
+                    $params['path'] = substr($params['path'], 0, -\strlen($m[0]));
+                }
+                $params += [
+                    'host' => $params['host'] ?? $params['path'],
+                    'port' => isset($params['host']) ? 11211 : null,
+                    'weight' => 0,
+                ];
+                if ($query) {
+                    $params += $query;
+                    $options = $query + $options;
+                }
+
+                $servers[$i] = [$params['host'], $params['port'], $params['weight']];
+
+                if ($hosts) {
+                    $servers = array_merge($servers, $hosts);
+                }
+            }
+
+            // set client's options
+            unset($options['persistent_id'], $options['username'], $options['password'], $options['weight'], $options['lazy']);
+            $options = array_change_key_case($options, \CASE_UPPER);
+            $client->setOption(\Memcached::OPT_BINARY_PROTOCOL, true);
+            $client->setOption(\Memcached::OPT_NO_BLOCK, true);
+            $client->setOption(\Memcached::OPT_TCP_NODELAY, true);
+            if (!\array_key_exists('LIBKETAMA_COMPATIBLE', $options) && !\array_key_exists(\Memcached::OPT_LIBKETAMA_COMPATIBLE, $options)) {
+                $client->setOption(\Memcached::OPT_LIBKETAMA_COMPATIBLE, true);
+            }
+            foreach ($options as $name => $value) {
+                if (\is_int($name)) {
+                    continue;
+                }
+                if ('HASH' === $name || 'SERIALIZER' === $name || 'DISTRIBUTION' === $name) {
+                    $value = \constant('Memcached::'.$name.'_'.strtoupper($value));
+                }
+                unset($options[$name]);
+
+                if (\defined('Memcached::OPT_'.$name)) {
+                    $options[\constant('Memcached::OPT_'.$name)] = $value;
+                }
+            }
+            $client->setOptions($options + [\Memcached::OPT_SERIALIZER => \Memcached::SERIALIZER_PHP]);
+
+            // set client's servers, taking care of persistent connections
+            if (!$client->isPristine()) {
+                $oldServers = [];
+                foreach ($client->getServerList() as $server) {
+                    $oldServers[] = [$server['host'], $server['port']];
+                }
+
+                $newServers = [];
+                foreach ($servers as $server) {
+                    if (1 < \count($server)) {
+                        $server = array_values($server);
+                        unset($server[2]);
+                        $server[1] = (int) $server[1];
+                    }
+                    $newServers[] = $server;
+                }
+
+                if ($oldServers !== $newServers) {
+                    $client->resetServerList();
+                    $client->addServers($servers);
+                }
+            } else {
+                $client->addServers($servers);
+            }
+
+            if (null !== $username || null !== $password) {
+                if (!method_exists($client, 'setSaslAuthData')) {
+                    trigger_error('Missing SASL support: the memcached extension must be compiled with --enable-memcached-sasl.');
+                }
+                $client->setSaslAuthData($username, $password);
+            }
+
+            return $client;
+        } finally {
+            restore_error_handler();
+        }
+    }
+
+    protected function doSave(array $values, int $lifetime): array|bool
+    {
+        if (!$values = $this->marshaller->marshall($values, $failed)) {
+            return $failed;
+        }
+
+        if ($lifetime && $lifetime > 30 * 86400) {
+            $lifetime += time();
+        }
+
+        $encodedValues = [];
+        foreach ($values as $key => $value) {
+            $encodedValues[self::encodeKey($key)] = $value;
+        }
+
+        return $this->checkResultCode($this->getClient()->setMulti($encodedValues, $lifetime)) ? $failed : false;
+    }
+
+    protected function doFetch(array $ids): iterable
+    {
+        try {
+            $encodedIds = array_map([__CLASS__, 'encodeKey'], $ids);
+
+            $encodedResult = $this->checkResultCode($this->getClient()->getMulti($encodedIds));
+
+            $result = [];
+            foreach ($encodedResult as $key => $value) {
+                $result[self::decodeKey($key)] = $this->marshaller->unmarshall($value);
+            }
+
+            return $result;
+        } catch (\Error $e) {
+            throw new \ErrorException($e->getMessage(), $e->getCode(), \E_ERROR, $e->getFile(), $e->getLine());
+        }
+    }
+
+    protected function doHave(string $id): bool
+    {
+        return false !== $this->getClient()->get(self::encodeKey($id)) || $this->checkResultCode(\Memcached::RES_SUCCESS === $this->client->getResultCode());
+    }
+
+    protected function doDelete(array $ids): bool
+    {
+        $ok = true;
+        $encodedIds = array_map([__CLASS__, 'encodeKey'], $ids);
+        foreach ($this->checkResultCode($this->getClient()->deleteMulti($encodedIds)) as $result) {
+            if (\Memcached::RES_SUCCESS !== $result && \Memcached::RES_NOTFOUND !== $result) {
+                $ok = false;
+            }
+        }
+
+        return $ok;
+    }
+
+    protected function doClear(string $namespace): bool
+    {
+        return '' === $namespace && $this->getClient()->flush();
+    }
+
+    private function checkResultCode(mixed $result): mixed
+    {
+        $code = $this->client->getResultCode();
+
+        if (\Memcached::RES_SUCCESS === $code || \Memcached::RES_NOTFOUND === $code) {
+            return $result;
+        }
+
+        throw new CacheException('MemcachedAdapter client error: '.strtolower($this->client->getResultMessage()));
+    }
+
+    private function getClient(): \Memcached
+    {
+        if (isset($this->client)) {
+            return $this->client;
+        }
+
+        $opt = $this->lazyClient->getOption(\Memcached::OPT_SERIALIZER);
+        if (\Memcached::SERIALIZER_PHP !== $opt && \Memcached::SERIALIZER_IGBINARY !== $opt) {
+            throw new CacheException('MemcachedAdapter: "serializer" option must be "php" or "igbinary".');
+        }
+        if ('' !== $prefix = (string) $this->lazyClient->getOption(\Memcached::OPT_PREFIX_KEY)) {
+            throw new CacheException(\sprintf('MemcachedAdapter: "prefix_key" option must be empty when using proxified connections, "%s" given.', $prefix));
+        }
+
+        return $this->client = $this->lazyClient;
+    }
+
+    private static function encodeKey(string $key): string
+    {
+        return strtr($key, self::RESERVED_MEMCACHED, self::RESERVED_PSR6);
+    }
+
+    private static function decodeKey(string $key): string
+    {
+        return strtr($key, self::RESERVED_PSR6, self::RESERVED_MEMCACHED);
+    }
+}

backend/vendor/symfony/cache/Adapter/NullAdapter.php

@@ -0,0 +1,117 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Contracts\Cache\CacheInterface;
+use Symfony\Contracts\Cache\NamespacedPoolInterface;
+
+/**
+ * @author Titouan Galopin <galopintitouan@gmail.com>
+ */
+class NullAdapter implements AdapterInterface, CacheInterface, NamespacedPoolInterface, TagAwareAdapterInterface
+{
+    private static \Closure $createCacheItem;
+
+    public function __construct()
+    {
+        self::$createCacheItem ??= \Closure::bind(
+            static function ($key) {
+                $item = new CacheItem();
+                $item->isTaggable = true;
+                $item->key = $key;
+                $item->isHit = false;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    public function get(string $key, callable $callback, ?float $beta = null, ?array &$metadata = null): mixed
+    {
+        $save = true;
+
+        return $callback((self::$createCacheItem)($key), $save);
+    }
+
+    public function getItem(mixed $key): CacheItem
+    {
+        return (self::$createCacheItem)($key);
+    }
+
+    public function getItems(array $keys = []): iterable
+    {
+        return $this->generateItems($keys);
+    }
+
+    public function hasItem(mixed $key): bool
+    {
+        return false;
+    }
+
+    public function clear(string $prefix = ''): bool
+    {
+        return true;
+    }
+
+    public function deleteItem(mixed $key): bool
+    {
+        return true;
+    }
+
+    public function deleteItems(array $keys): bool
+    {
+        return true;
+    }
+
+    public function save(CacheItemInterface $item): bool
+    {
+        return true;
+    }
+
+    public function saveDeferred(CacheItemInterface $item): bool
+    {
+        return true;
+    }
+
+    public function commit(): bool
+    {
+        return true;
+    }
+
+    public function delete(string $key): bool
+    {
+        return $this->deleteItem($key);
+    }
+
+    public function withSubNamespace(string $namespace): static
+    {
+        return clone $this;
+    }
+
+    private function generateItems(array $keys): \Generator
+    {
+        $f = self::$createCacheItem;
+
+        foreach ($keys as $key) {
+            yield $key => $f($key);
+        }
+    }
+
+    public function invalidateTags(array $tags): bool
+    {
+        return true;
+    }
+}

backend/vendor/symfony/cache/Adapter/ParameterNormalizer.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+/**
+ * @author Lars Strojny <lars@strojny.net>
+ */
+final class ParameterNormalizer
+{
+    public static function normalizeDuration(string $duration): int
+    {
+        if (is_numeric($duration)) {
+            return $duration;
+        }
+
+        if (false !== $time = strtotime($duration, 0)) {
+            return $time;
+        }
+
+        try {
+            return \DateTimeImmutable::createFromFormat('U', 0)->add(new \DateInterval($duration))->getTimestamp();
+        } catch (\Exception $e) {
+            throw new \InvalidArgumentException(\sprintf('Cannot parse date interval "%s".', $duration), 0, $e);
+        }
+    }
+}

backend/vendor/symfony/cache/Adapter/PdoAdapter.php

@@ -0,0 +1,408 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\Marshaller\DefaultMarshaller;
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+use Symfony\Component\Cache\PruneableInterface;
+
+class PdoAdapter extends AbstractAdapter implements PruneableInterface
+{
+    private const MAX_KEY_LENGTH = 255;
+
+    private MarshallerInterface $marshaller;
+    private \PDO $conn;
+    private string $dsn;
+    private string $driver;
+    private string $serverVersion;
+    private string $table = 'cache_items';
+    private string $idCol = 'item_id';
+    private string $dataCol = 'item_data';
+    private string $lifetimeCol = 'item_lifetime';
+    private string $timeCol = 'item_time';
+    private ?string $username = null;
+    private ?string $password = null;
+    private array $connectionOptions = [];
+    private string $namespace;
+
+    /**
+     * You can either pass an existing database connection as PDO instance or
+     * a DSN string that will be used to lazy-connect to the database when the
+     * cache is actually used.
+     *
+     * List of available options:
+     *  * db_table: The name of the table [default: cache_items]
+     *  * db_id_col: The column where to store the cache id [default: item_id]
+     *  * db_data_col: The column where to store the cache data [default: item_data]
+     *  * db_lifetime_col: The column where to store the lifetime [default: item_lifetime]
+     *  * db_time_col: The column where to store the timestamp [default: item_time]
+     *  * db_username: The username when lazy-connect [default: '']
+     *  * db_password: The password when lazy-connect [default: '']
+     *  * db_connection_options: An array of driver-specific connection options [default: []]
+     *
+     * @throws InvalidArgumentException When first argument is not PDO nor Connection nor string
+     * @throws InvalidArgumentException When PDO error mode is not PDO::ERRMODE_EXCEPTION
+     * @throws InvalidArgumentException When namespace contains invalid characters
+     */
+    public function __construct(#[\SensitiveParameter] \PDO|string $connOrDsn, string $namespace = '', int $defaultLifetime = 0, array $options = [], ?MarshallerInterface $marshaller = null)
+    {
+        if (\is_string($connOrDsn) && str_contains($connOrDsn, '://')) {
+            throw new InvalidArgumentException(\sprintf('Usage of Doctrine DBAL URL with "%s" is not supported. Use a PDO DSN or "%s" instead.', __CLASS__, DoctrineDbalAdapter::class));
+        }
+
+        if (isset($namespace[0]) && preg_match('#[^-+.A-Za-z0-9]#', $namespace, $match)) {
+            throw new InvalidArgumentException(\sprintf('Namespace contains "%s" but only characters in [-+.A-Za-z0-9] are allowed.', $match[0]));
+        }
+
+        if ($connOrDsn instanceof \PDO) {
+            if (\PDO::ERRMODE_EXCEPTION !== $connOrDsn->getAttribute(\PDO::ATTR_ERRMODE)) {
+                throw new InvalidArgumentException(\sprintf('"%s" requires PDO error mode attribute be set to throw Exceptions (i.e. $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION)).', __CLASS__));
+            }
+
+            $this->conn = $connOrDsn;
+        } else {
+            $this->dsn = $connOrDsn;
+        }
+
+        $this->maxIdLength = self::MAX_KEY_LENGTH;
+        $this->table = $options['db_table'] ?? $this->table;
+        $this->idCol = $options['db_id_col'] ?? $this->idCol;
+        $this->dataCol = $options['db_data_col'] ?? $this->dataCol;
+        $this->lifetimeCol = $options['db_lifetime_col'] ?? $this->lifetimeCol;
+        $this->timeCol = $options['db_time_col'] ?? $this->timeCol;
+        $this->username = $options['db_username'] ?? $this->username;
+        $this->password = $options['db_password'] ?? $this->password;
+        $this->connectionOptions = $options['db_connection_options'] ?? $this->connectionOptions;
+        $this->namespace = $namespace;
+        $this->marshaller = $marshaller ?? new DefaultMarshaller();
+
+        parent::__construct($namespace, $defaultLifetime);
+    }
+
+    public static function createConnection(#[\SensitiveParameter] string $dsn, array $options = []): \PDO|string
+    {
+        if ($options['lazy'] ?? true) {
+            return $dsn;
+        }
+
+        $pdo = new \PDO($dsn);
+        $pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+
+        return $pdo;
+    }
+
+    /**
+     * Creates the table to store cache items which can be called once for setup.
+     *
+     * Cache ID are saved in a column of maximum length 255. Cache data is
+     * saved in a BLOB.
+     *
+     * @throws \PDOException    When the table already exists
+     * @throws \DomainException When an unsupported PDO driver is used
+     */
+    public function createTable(): void
+    {
+        $sql = match ($driver = $this->getDriver()) {
+            // We use varbinary for the ID column because it prevents unwanted conversions:
+            // - character set conversions between server and client
+            // - trailing space removal
+            // - case-insensitivity
+            // - language processing like é == e
+            'mysql' => "CREATE TABLE $this->table ($this->idCol VARBINARY(255) NOT NULL PRIMARY KEY, $this->dataCol MEDIUMBLOB NOT NULL, $this->lifetimeCol INTEGER UNSIGNED, $this->timeCol INTEGER UNSIGNED NOT NULL) ENGINE = InnoDB",
+            'sqlite' => "CREATE TABLE $this->table ($this->idCol TEXT NOT NULL PRIMARY KEY, $this->dataCol BLOB NOT NULL, $this->lifetimeCol INTEGER, $this->timeCol INTEGER NOT NULL)",
+            'pgsql' => "CREATE TABLE $this->table ($this->idCol VARCHAR(255) NOT NULL PRIMARY KEY, $this->dataCol BYTEA NOT NULL, $this->lifetimeCol INTEGER, $this->timeCol INTEGER NOT NULL)",
+            'oci' => "CREATE TABLE $this->table ($this->idCol VARCHAR2(255) NOT NULL PRIMARY KEY, $this->dataCol BLOB NOT NULL, $this->lifetimeCol INTEGER, $this->timeCol INTEGER NOT NULL)",
+            'sqlsrv' => "CREATE TABLE $this->table ($this->idCol VARCHAR(255) NOT NULL PRIMARY KEY, $this->dataCol VARBINARY(MAX) NOT NULL, $this->lifetimeCol INTEGER, $this->timeCol INTEGER NOT NULL)",
+            default => throw new \DomainException(\sprintf('Creating the cache table is currently not implemented for PDO driver "%s".', $driver)),
+        };
+
+        $this->getConnection()->exec($sql);
+    }
+
+    public function prune(): bool
+    {
+        $deleteSql = "DELETE FROM $this->table WHERE $this->lifetimeCol + $this->timeCol <= :time";
+
+        if ('' !== $this->namespace) {
+            $deleteSql .= " AND $this->idCol LIKE :namespace";
+        }
+
+        $connection = $this->getConnection();
+
+        try {
+            $delete = $connection->prepare($deleteSql);
+        } catch (\PDOException) {
+            return true;
+        }
+        $delete->bindValue(':time', time(), \PDO::PARAM_INT);
+
+        if ('' !== $this->namespace) {
+            $delete->bindValue(':namespace', \sprintf('%s%%', $this->namespace), \PDO::PARAM_STR);
+        }
+        try {
+            return $delete->execute();
+        } catch (\PDOException) {
+            return true;
+        }
+    }
+
+    protected function doFetch(array $ids): iterable
+    {
+        $connection = $this->getConnection();
+
+        $now = time();
+        $expired = [];
+
+        $sql = str_pad('', (\count($ids) << 1) - 1, '?,');
+        $sql = "SELECT $this->idCol, CASE WHEN $this->lifetimeCol IS NULL OR $this->lifetimeCol + $this->timeCol > ? THEN $this->dataCol ELSE NULL END FROM $this->table WHERE $this->idCol IN ($sql)";
+        $stmt = $connection->prepare($sql);
+        $stmt->bindValue($i = 1, $now, \PDO::PARAM_INT);
+        foreach ($ids as $id) {
+            $stmt->bindValue(++$i, $id);
+        }
+        $result = $stmt->execute();
+
+        if (\is_object($result)) {
+            $result = $result->iterateNumeric();
+        } else {
+            $stmt->setFetchMode(\PDO::FETCH_NUM);
+            $result = $stmt;
+        }
+
+        foreach ($result as $row) {
+            if (null === $row[1]) {
+                $expired[] = $row[0];
+            } else {
+                yield $row[0] => $this->marshaller->unmarshall(\is_resource($row[1]) ? stream_get_contents($row[1]) : $row[1]);
+            }
+        }
+
+        if ($expired) {
+            $sql = str_pad('', (\count($expired) << 1) - 1, '?,');
+            $sql = "DELETE FROM $this->table WHERE $this->lifetimeCol + $this->timeCol <= ? AND $this->idCol IN ($sql)";
+            $stmt = $connection->prepare($sql);
+            $stmt->bindValue($i = 1, $now, \PDO::PARAM_INT);
+            foreach ($expired as $id) {
+                $stmt->bindValue(++$i, $id);
+            }
+            $stmt->execute();
+        }
+    }
+
+    protected function doHave(string $id): bool
+    {
+        $connection = $this->getConnection();
+
+        $sql = "SELECT 1 FROM $this->table WHERE $this->idCol = :id AND ($this->lifetimeCol IS NULL OR $this->lifetimeCol + $this->timeCol > :time)";
+        $stmt = $connection->prepare($sql);
+
+        $stmt->bindValue(':id', $id);
+        $stmt->bindValue(':time', time(), \PDO::PARAM_INT);
+        $stmt->execute();
+
+        return (bool) $stmt->fetchColumn();
+    }
+
+    protected function doClear(string $namespace): bool
+    {
+        $conn = $this->getConnection();
+
+        if ('' === $namespace) {
+            if ('sqlite' === $this->getDriver()) {
+                $sql = "DELETE FROM $this->table";
+            } else {
+                $sql = "TRUNCATE TABLE $this->table";
+            }
+        } else {
+            $sql = "DELETE FROM $this->table WHERE $this->idCol LIKE '$namespace%'";
+        }
+
+        try {
+            $conn->exec($sql);
+        } catch (\PDOException) {
+        }
+
+        return true;
+    }
+
+    protected function doDelete(array $ids): bool
+    {
+        $sql = str_pad('', (\count($ids) << 1) - 1, '?,');
+        $sql = "DELETE FROM $this->table WHERE $this->idCol IN ($sql)";
+        try {
+            $stmt = $this->getConnection()->prepare($sql);
+            $stmt->execute(array_values($ids));
+        } catch (\PDOException) {
+        }
+
+        return true;
+    }
+
+    protected function doSave(array $values, int $lifetime): array|bool
+    {
+        if (!$values = $this->marshaller->marshall($values, $failed)) {
+            return $failed;
+        }
+
+        $conn = $this->getConnection();
+
+        $driver = $this->getDriver();
+        $insertSql = "INSERT INTO $this->table ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (:id, :data, :lifetime, :time)";
+
+        switch (true) {
+            case 'mysql' === $driver:
+                $sql = $insertSql." ON DUPLICATE KEY UPDATE $this->dataCol = VALUES($this->dataCol), $this->lifetimeCol = VALUES($this->lifetimeCol), $this->timeCol = VALUES($this->timeCol)";
+                break;
+            case 'oci' === $driver:
+                // DUAL is Oracle specific dummy table
+                $sql = "MERGE INTO $this->table USING DUAL ON ($this->idCol = ?) ".
+                    "WHEN NOT MATCHED THEN INSERT ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (?, ?, ?, ?) ".
+                    "WHEN MATCHED THEN UPDATE SET $this->dataCol = ?, $this->lifetimeCol = ?, $this->timeCol = ?";
+                break;
+            case 'sqlsrv' === $driver && version_compare($this->getServerVersion(), '10', '>='):
+                // MERGE is only available since SQL Server 2008 and must be terminated by semicolon
+                // It also requires HOLDLOCK according to http://weblogs.sqlteam.com/dang/archive/2009/01/31/UPSERT-Race-Condition-With-MERGE.aspx
+                $sql = "MERGE INTO $this->table WITH (HOLDLOCK) USING (SELECT 1 AS dummy) AS src ON ($this->idCol = ?) ".
+                    "WHEN NOT MATCHED THEN INSERT ($this->idCol, $this->dataCol, $this->lifetimeCol, $this->timeCol) VALUES (?, ?, ?, ?) ".
+                    "WHEN MATCHED THEN UPDATE SET $this->dataCol = ?, $this->lifetimeCol = ?, $this->timeCol = ?;";
+                break;
+            case 'sqlite' === $driver:
+                $sql = 'INSERT OR REPLACE'.substr($insertSql, 6);
+                break;
+            case 'pgsql' === $driver && version_compare($this->getServerVersion(), '9.5', '>='):
+                $sql = $insertSql." ON CONFLICT ($this->idCol) DO UPDATE SET ($this->dataCol, $this->lifetimeCol, $this->timeCol) = (EXCLUDED.$this->dataCol, EXCLUDED.$this->lifetimeCol, EXCLUDED.$this->timeCol)";
+                break;
+            default:
+                $driver = null;
+                $sql = "UPDATE $this->table SET $this->dataCol = :data, $this->lifetimeCol = :lifetime, $this->timeCol = :time WHERE $this->idCol = :id";
+                break;
+        }
+
+        $now = time();
+        $lifetime = $lifetime ?: null;
+        try {
+            $stmt = $conn->prepare($sql);
+        } catch (\PDOException $e) {
+            if ($this->isTableMissing($e) && (!$conn->inTransaction() || \in_array($driver, ['pgsql', 'sqlite', 'sqlsrv'], true))) {
+                $this->createTable();
+            }
+            $stmt = $conn->prepare($sql);
+        }
+
+        // $id and $data are defined later in the loop. Binding is done by reference, values are read on execution.
+        if ('sqlsrv' === $driver || 'oci' === $driver) {
+            $stmt->bindParam(1, $id);
+            $stmt->bindParam(2, $id);
+            $stmt->bindParam(3, $data, \PDO::PARAM_LOB);
+            $stmt->bindValue(4, $lifetime, \PDO::PARAM_INT);
+            $stmt->bindValue(5, $now, \PDO::PARAM_INT);
+            $stmt->bindParam(6, $data, \PDO::PARAM_LOB);
+            $stmt->bindValue(7, $lifetime, \PDO::PARAM_INT);
+            $stmt->bindValue(8, $now, \PDO::PARAM_INT);
+        } else {
+            $stmt->bindParam(':id', $id);
+            $stmt->bindParam(':data', $data, \PDO::PARAM_LOB);
+            $stmt->bindValue(':lifetime', $lifetime, \PDO::PARAM_INT);
+            $stmt->bindValue(':time', $now, \PDO::PARAM_INT);
+        }
+        if (null === $driver) {
+            $insertStmt = $conn->prepare($insertSql);
+
+            $insertStmt->bindParam(':id', $id);
+            $insertStmt->bindParam(':data', $data, \PDO::PARAM_LOB);
+            $insertStmt->bindValue(':lifetime', $lifetime, \PDO::PARAM_INT);
+            $insertStmt->bindValue(':time', $now, \PDO::PARAM_INT);
+        }
+
+        if ('sqlsrv' === $driver) {
+            $dataStream = fopen('php://memory', 'r+');
+        }
+        foreach ($values as $id => $data) {
+            if ('sqlsrv' === $driver) {
+                rewind($dataStream);
+                fwrite($dataStream, $data);
+                ftruncate($dataStream, \strlen($data));
+                rewind($dataStream);
+                $data = $dataStream;
+            }
+            try {
+                $stmt->execute();
+            } catch (\PDOException $e) {
+                if ($this->isTableMissing($e) && (!$conn->inTransaction() || \in_array($driver, ['pgsql', 'sqlite', 'sqlsrv'], true))) {
+                    $this->createTable();
+                }
+                $stmt->execute();
+            }
+            if (null === $driver && !$stmt->rowCount()) {
+                try {
+                    $insertStmt->execute();
+                } catch (\PDOException) {
+                    // A concurrent write won, let it be
+                }
+            }
+        }
+
+        return $failed;
+    }
+
+    /**
+     * @internal
+     */
+    protected function getId(mixed $key, ?string $namespace = null): string
+    {
+        if ('pgsql' !== $this->getDriver()) {
+            return parent::getId($key, $namespace);
+        }
+
+        if (str_contains($key, "\0") || str_contains($key, '%') || !preg_match('//u', $key)) {
+            $key = rawurlencode($key);
+        }
+
+        return parent::getId($key, $namespace);
+    }
+
+    private function getConnection(): \PDO
+    {
+        if (!isset($this->conn)) {
+            $this->conn = new \PDO($this->dsn, $this->username, $this->password, $this->connectionOptions);
+            $this->conn->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+        }
+
+        return $this->conn;
+    }
+
+    private function getDriver(): string
+    {
+        return $this->driver ??= $this->getConnection()->getAttribute(\PDO::ATTR_DRIVER_NAME);
+    }
+
+    private function getServerVersion(): string
+    {
+        return $this->serverVersion ??= $this->getConnection()->getAttribute(\PDO::ATTR_SERVER_VERSION);
+    }
+
+    private function isTableMissing(\PDOException $exception): bool
+    {
+        $driver = $this->getDriver();
+        [$sqlState, $code] = $exception->errorInfo ?? [null, $exception->getCode()];
+
+        return match ($driver) {
+            'pgsql' => '42P01' === $sqlState,
+            'sqlite' => str_contains($exception->getMessage(), 'no such table:'),
+            'oci' => 942 === $code,
+            'sqlsrv' => 208 === $code,
+            'mysql' => 1146 === $code,
+            default => false,
+        };
+    }
+}

backend/vendor/symfony/cache/Adapter/PhpArrayAdapter.php

@@ -0,0 +1,388 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\CachedValueInterface;
+use Symfony\Component\Cache\Traits\ContractsTrait;
+use Symfony\Component\Cache\Traits\ProxyTrait;
+use Symfony\Component\VarExporter\VarExporter;
+use Symfony\Contracts\Cache\CacheInterface;
+
+/**
+ * Caches items at warm up time using a PHP array that is stored in shared memory by OPCache since PHP 7.0.
+ * Warmed up items are read-only and run-time discovered items are cached using a fallback adapter.
+ *
+ * @author Titouan Galopin <galopintitouan@gmail.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class PhpArrayAdapter implements AdapterInterface, CacheInterface, PruneableInterface, ResettableInterface
+{
+    use ContractsTrait;
+    use ProxyTrait;
+
+    private array $keys;
+    private array $values;
+
+    private static \Closure $createCacheItem;
+    private static array $valuesCache = [];
+
+    /**
+     * @param string           $file         The PHP file where values are cached
+     * @param AdapterInterface $fallbackPool A pool to fallback on when an item is not hit
+     */
+    public function __construct(
+        private string $file,
+        AdapterInterface $fallbackPool,
+    ) {
+        $this->pool = $fallbackPool;
+        self::$createCacheItem ??= \Closure::bind(
+            static function ($key, $value, $isHit) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * This adapter takes advantage of how PHP stores arrays in its latest versions.
+     *
+     * @param string                 $file         The PHP file were values are cached
+     * @param CacheItemPoolInterface $fallbackPool A pool to fallback on when an item is not hit
+     */
+    public static function create(string $file, CacheItemPoolInterface $fallbackPool): CacheItemPoolInterface
+    {
+        if (!$fallbackPool instanceof AdapterInterface) {
+            $fallbackPool = new ProxyAdapter($fallbackPool);
+        }
+
+        return new static($file, $fallbackPool);
+    }
+
+    public function get(string $key, callable $callback, ?float $beta = null, ?array &$metadata = null): mixed
+    {
+        if (!isset($this->values)) {
+            $this->initialize();
+        }
+        if (!isset($this->keys[$key])) {
+            get_from_pool:
+            if ($this->pool instanceof CacheInterface) {
+                return $this->pool->get($key, $callback, $beta, $metadata);
+            }
+
+            return $this->doGet($this->pool, $key, $callback, $beta, $metadata);
+        }
+        $value = $this->values[$this->keys[$key]];
+
+        if ('N;' === $value) {
+            return null;
+        }
+        if (!$value instanceof CachedValueInterface) {
+            return $value;
+        }
+        try {
+            return $value->getValue();
+        } catch (\Throwable) {
+            unset($this->keys[$key]);
+            goto get_from_pool;
+        }
+    }
+
+    public function getItem(mixed $key): CacheItem
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(\sprintf('Cache key must be string, "%s" given.', get_debug_type($key)));
+        }
+        if (!isset($this->values)) {
+            $this->initialize();
+        }
+        if (!isset($this->keys[$key])) {
+            return $this->pool->getItem($key);
+        }
+
+        $value = $this->values[$this->keys[$key]];
+        $isHit = true;
+
+        if ('N;' === $value) {
+            $value = null;
+        } elseif ($value instanceof CachedValueInterface) {
+            try {
+                $value = $value->getValue();
+            } catch (\Throwable) {
+                $value = null;
+                $isHit = false;
+            }
+        }
+
+        return (self::$createCacheItem)($key, $value, $isHit);
+    }
+
+    public function getItems(array $keys = []): iterable
+    {
+        foreach ($keys as $key) {
+            if (!\is_string($key)) {
+                throw new InvalidArgumentException(\sprintf('Cache key must be string, "%s" given.', get_debug_type($key)));
+            }
+        }
+        if (!isset($this->values)) {
+            $this->initialize();
+        }
+
+        return $this->generateItems($keys);
+    }
+
+    public function hasItem(mixed $key): bool
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(\sprintf('Cache key must be string, "%s" given.', get_debug_type($key)));
+        }
+        if (!isset($this->values)) {
+            $this->initialize();
+        }
+
+        return isset($this->keys[$key]) || $this->pool->hasItem($key);
+    }
+
+    public function deleteItem(mixed $key): bool
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(\sprintf('Cache key must be string, "%s" given.', get_debug_type($key)));
+        }
+        if (!isset($this->values)) {
+            $this->initialize();
+        }
+
+        return !isset($this->keys[$key]) && $this->pool->deleteItem($key);
+    }
+
+    public function deleteItems(array $keys): bool
+    {
+        $deleted = true;
+        $fallbackKeys = [];
+
+        foreach ($keys as $key) {
+            if (!\is_string($key)) {
+                throw new InvalidArgumentException(\sprintf('Cache key must be string, "%s" given.', get_debug_type($key)));
+            }
+
+            if (isset($this->keys[$key])) {
+                $deleted = false;
+            } else {
+                $fallbackKeys[] = $key;
+            }
+        }
+        if (!isset($this->values)) {
+            $this->initialize();
+        }
+
+        if ($fallbackKeys) {
+            $deleted = $this->pool->deleteItems($fallbackKeys) && $deleted;
+        }
+
+        return $deleted;
+    }
+
+    public function save(CacheItemInterface $item): bool
+    {
+        if (!isset($this->values)) {
+            $this->initialize();
+        }
+
+        return !isset($this->keys[$item->getKey()]) && $this->pool->save($item);
+    }
+
+    public function saveDeferred(CacheItemInterface $item): bool
+    {
+        if (!isset($this->values)) {
+            $this->initialize();
+        }
+
+        return !isset($this->keys[$item->getKey()]) && $this->pool->saveDeferred($item);
+    }
+
+    public function commit(): bool
+    {
+        return $this->pool->commit();
+    }
+
+    public function clear(string $prefix = ''): bool
+    {
+        $this->keys = $this->values = [];
+
+        $cleared = @unlink($this->file) || !file_exists($this->file);
+        unset(self::$valuesCache[$this->file]);
+
+        if ($this->pool instanceof AdapterInterface) {
+            return $this->pool->clear($prefix) && $cleared;
+        }
+
+        return $this->pool->clear() && $cleared;
+    }
+
+    /**
+     * Store an array of cached values.
+     *
+     * @param array $values The cached values
+     *
+     * @return string[] A list of classes to preload on PHP 7.4+
+     */
+    public function warmUp(array $values): array
+    {
+        if (file_exists($this->file)) {
+            if (!is_file($this->file)) {
+                throw new InvalidArgumentException(\sprintf('Cache path exists and is not a file: "%s".', $this->file));
+            }
+
+            if (!is_writable($this->file)) {
+                throw new InvalidArgumentException(\sprintf('Cache file is not writable: "%s".', $this->file));
+            }
+        } else {
+            $directory = \dirname($this->file);
+
+            if (!is_dir($directory) && !@mkdir($directory, 0o777, true)) {
+                throw new InvalidArgumentException(\sprintf('Cache directory does not exist and cannot be created: "%s".', $directory));
+            }
+
+            if (!is_writable($directory)) {
+                throw new InvalidArgumentException(\sprintf('Cache directory is not writable: "%s".', $directory));
+            }
+        }
+
+        $preload = [];
+        $dumpedValues = '';
+        $dumpedMap = [];
+        $dump = <<<'EOF'
+            <?php
+
+            // This file has been auto-generated by the Symfony Cache Component.
+
+            return [[
+
+
+            EOF;
+
+        foreach ($values as $key => $value) {
+            CacheItem::validateKey(\is_int($key) ? (string) $key : $key);
+            $isStaticValue = true;
+
+            if (null === $value) {
+                $value = "'N;'";
+            } elseif (\is_object($value) || \is_array($value)) {
+                try {
+                    $value = VarExporter::export($value, $isStaticValue, $preload);
+                } catch (\Exception $e) {
+                    throw new InvalidArgumentException(\sprintf('Cache key "%s" has non-serializable "%s" value.', $key, get_debug_type($value)), 0, $e);
+                }
+            } elseif (\is_string($value)) {
+                // Wrap "N;" in a closure to not confuse it with an encoded `null`
+                if ('N;' === $value) {
+                    $isStaticValue = false;
+                }
+                $value = var_export($value, true);
+            } elseif (!\is_scalar($value)) {
+                throw new InvalidArgumentException(\sprintf('Cache key "%s" has non-serializable "%s" value.', $key, get_debug_type($value)));
+            } else {
+                $value = var_export($value, true);
+            }
+
+            if (!$isStaticValue) {
+                $value = 'new class() implements \\'.CachedValueInterface::class." { public function getValue(): mixed { return {$value}; } }";
+            }
+            $hash = hash('xxh128', $value);
+
+            if (null === $id = $dumpedMap[$hash] ?? null) {
+                $id = $dumpedMap[$hash] = \count($dumpedMap);
+                $dumpedValues .= "{$id} => {$value},\n";
+            }
+
+            $dump .= var_export($key, true)." => {$id},\n";
+        }
+
+        $dump .= "\n], [\n\n{$dumpedValues}\n]];\n";
+
+        $tmpFile = tempnam(\dirname($this->file), basename($this->file));
+
+        file_put_contents($tmpFile, $dump);
+        @chmod($tmpFile, 0o666 & ~umask());
+        unset($value, $dump);
+
+        @rename($tmpFile, $this->file);
+        unset(self::$valuesCache[$this->file]);
+
+        $this->initialize();
+
+        return $preload;
+    }
+
+    /**
+     * Load the cache file.
+     */
+    private function initialize(): void
+    {
+        if (isset(self::$valuesCache[$this->file])) {
+            $values = self::$valuesCache[$this->file];
+        } elseif (!is_file($this->file)) {
+            $this->keys = $this->values = [];
+
+            return;
+        } else {
+            $values = self::$valuesCache[$this->file] = (include $this->file) ?: [[], []];
+        }
+
+        if (2 !== \count($values) || !isset($values[0], $values[1])) {
+            $this->keys = $this->values = [];
+        } else {
+            [$this->keys, $this->values] = $values;
+        }
+    }
+
+    private function generateItems(array $keys): \Generator
+    {
+        $f = self::$createCacheItem;
+        $fallbackKeys = [];
+
+        foreach ($keys as $key) {
+            if (isset($this->keys[$key])) {
+                $value = $this->values[$this->keys[$key]];
+
+                if ('N;' === $value) {
+                    yield $key => $f($key, null, true);
+                } elseif ($value instanceof CachedValueInterface) {
+                    try {
+                        yield $key => $f($key, $value->getValue(), true);
+                    } catch (\Throwable) {
+                        yield $key => $f($key, null, false);
+                    }
+                } else {
+                    yield $key => $f($key, $value, true);
+                }
+            } else {
+                $fallbackKeys[] = $key;
+            }
+        }
+
+        if ($fallbackKeys) {
+            yield from $this->pool->getItems($fallbackKeys);
+        }
+    }
+}

backend/vendor/symfony/cache/Adapter/PhpFilesAdapter.php

@@ -0,0 +1,315 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\Traits\CachedValueInterface;
+use Symfony\Component\Cache\Traits\FilesystemCommonTrait;
+use Symfony\Component\VarExporter\VarExporter;
+
+/**
+ * @author Piotr Stankowski <git@trakos.pl>
+ * @author Nicolas Grekas <p@tchwork.com>
+ * @author Rob Frawley 2nd <rmf@src.run>
+ */
+class PhpFilesAdapter extends AbstractAdapter implements PruneableInterface
+{
+    use FilesystemCommonTrait {
+        doClear as private doCommonClear;
+        doDelete as private doCommonDelete;
+    }
+
+    private \Closure $includeHandler;
+    private array $values = [];
+    private array $files = [];
+
+    private static int $startTime;
+    private static array $valuesCache = [];
+
+    /**
+     * @param bool $appendOnly Set to `true` to gain extra performance when the items stored in this pool never expire.
+     *                         Doing so is encouraged because it fits perfectly OPcache's memory model.
+     *
+     * @throws CacheException if OPcache is not enabled
+     */
+    public function __construct(
+        string $namespace = '',
+        int $defaultLifetime = 0,
+        ?string $directory = null,
+        private bool $appendOnly = false,
+    ) {
+        self::$startTime ??= $_SERVER['REQUEST_TIME'] ?? time();
+        parent::__construct('', $defaultLifetime);
+        $this->init($namespace, $directory);
+        $this->includeHandler = static function ($type, $msg, $file, $line) {
+            throw new \ErrorException($msg, 0, $type, $file, $line);
+        };
+    }
+
+    public static function isSupported(): bool
+    {
+        self::$startTime ??= $_SERVER['REQUEST_TIME'] ?? time();
+
+        return \function_exists('opcache_invalidate') && filter_var(\ini_get('opcache.enable'), \FILTER_VALIDATE_BOOL) && (!\in_array(\PHP_SAPI, ['cli', 'phpdbg', 'embed'], true) || filter_var(\ini_get('opcache.enable_cli'), \FILTER_VALIDATE_BOOL));
+    }
+
+    public function prune(): bool
+    {
+        $time = time();
+        $pruned = true;
+        $getExpiry = true;
+
+        set_error_handler($this->includeHandler);
+        try {
+            foreach ($this->scanHashDir($this->directory) as $file) {
+                try {
+                    if (\is_array($expiresAt = include $file)) {
+                        $expiresAt = $expiresAt[0];
+                    }
+                } catch (\ErrorException $e) {
+                    $expiresAt = $time;
+                }
+
+                if ($time >= $expiresAt) {
+                    $pruned = ($this->doUnlink($file) || !file_exists($file)) && $pruned;
+                }
+            }
+        } finally {
+            restore_error_handler();
+        }
+
+        return $pruned;
+    }
+
+    protected function doFetch(array $ids): iterable
+    {
+        if ($this->appendOnly) {
+            $now = 0;
+            $missingIds = [];
+        } else {
+            $now = time();
+            $missingIds = $ids;
+            $ids = [];
+        }
+        $values = [];
+
+        while (true) {
+            $getExpiry = false;
+
+            foreach ($ids as $id) {
+                if (null === $value = $this->values[$id] ?? null) {
+                    $missingIds[] = $id;
+                } elseif ('N;' === $value) {
+                    $values[$id] = null;
+                } elseif (!\is_object($value)) {
+                    $values[$id] = $value;
+                } elseif ($value instanceof CachedValueInterface) {
+                    $values[$id] = $value->getValue();
+                } elseif (!$value instanceof LazyValue) {
+                    $values[$id] = $value;
+                } elseif (false === $values[$id] = include $value->file) {
+                    unset($values[$id], $this->values[$id]);
+                    $missingIds[] = $id;
+                }
+                if (!$this->appendOnly) {
+                    unset($this->values[$id]);
+                }
+            }
+
+            if (!$missingIds) {
+                return $values;
+            }
+
+            set_error_handler($this->includeHandler);
+            try {
+                $getExpiry = true;
+
+                foreach ($missingIds as $k => $id) {
+                    try {
+                        $file = $this->files[$id] ??= $this->getFile($id);
+
+                        if (isset(self::$valuesCache[$file])) {
+                            [$expiresAt, $this->values[$id]] = self::$valuesCache[$file];
+                        } elseif (\is_array($expiresAt = include $file)) {
+                            if ($this->appendOnly) {
+                                self::$valuesCache[$file] = $expiresAt;
+                            }
+
+                            [$expiresAt, $this->values[$id]] = $expiresAt;
+                        } elseif ($now < $expiresAt) {
+                            $this->values[$id] = new LazyValue($file);
+                        }
+
+                        if ($now >= $expiresAt) {
+                            unset($this->values[$id], $missingIds[$k], self::$valuesCache[$file]);
+                        }
+                    } catch (\ErrorException $e) {
+                        unset($missingIds[$k]);
+                    }
+                }
+            } finally {
+                restore_error_handler();
+            }
+
+            $ids = $missingIds;
+            $missingIds = [];
+        }
+    }
+
+    protected function doHave(string $id): bool
+    {
+        if ($this->appendOnly && isset($this->values[$id])) {
+            return true;
+        }
+
+        set_error_handler($this->includeHandler);
+        try {
+            $file = $this->files[$id] ??= $this->getFile($id);
+            $getExpiry = true;
+
+            if (isset(self::$valuesCache[$file])) {
+                [$expiresAt, $value] = self::$valuesCache[$file];
+            } elseif (\is_array($expiresAt = include $file)) {
+                if ($this->appendOnly) {
+                    self::$valuesCache[$file] = $expiresAt;
+                }
+
+                [$expiresAt, $value] = $expiresAt;
+            } elseif ($this->appendOnly) {
+                $value = new LazyValue($file);
+            }
+        } catch (\ErrorException) {
+            return false;
+        } finally {
+            restore_error_handler();
+        }
+        if ($this->appendOnly) {
+            $now = 0;
+            $this->values[$id] = $value;
+        } else {
+            $now = time();
+        }
+
+        return $now < $expiresAt;
+    }
+
+    protected function doSave(array $values, int $lifetime): array|bool
+    {
+        $ok = true;
+        $expiry = $lifetime ? time() + $lifetime : 'PHP_INT_MAX';
+        $allowCompile = self::isSupported();
+
+        foreach ($values as $key => $value) {
+            unset($this->values[$key]);
+            $isStaticValue = true;
+            if (null === $value) {
+                $value = "'N;'";
+            } elseif (\is_object($value) || \is_array($value)) {
+                try {
+                    $value = VarExporter::export($value, $isStaticValue);
+                } catch (\Exception $e) {
+                    throw new InvalidArgumentException(\sprintf('Cache key "%s" has non-serializable "%s" value.', $key, get_debug_type($value)), 0, $e);
+                }
+            } elseif (\is_string($value)) {
+                // Wrap "N;" in a closure to not confuse it with an encoded `null`
+                if ('N;' === $value) {
+                    $isStaticValue = false;
+                }
+                $value = var_export($value, true);
+            } elseif (!\is_scalar($value)) {
+                throw new InvalidArgumentException(\sprintf('Cache key "%s" has non-serializable "%s" value.', $key, get_debug_type($value)));
+            } else {
+                $value = var_export($value, true);
+            }
+
+            $encodedKey = rawurlencode($key);
+
+            if ($isStaticValue) {
+                $value = "return [{$expiry}, {$value}];";
+            } elseif ($this->appendOnly) {
+                $value = "return [{$expiry}, new class() implements \\".CachedValueInterface::class." { public function getValue(): mixed { return {$value}; } }];";
+            } else {
+                // We cannot use a closure here because of https://bugs.php.net/76982
+                $value = str_replace('\Symfony\Component\VarExporter\Internal\\', '', $value);
+                $value = "namespace Symfony\Component\VarExporter\Internal;\n\nreturn \$getExpiry ? {$expiry} : {$value};";
+            }
+
+            $file = $this->files[$key] = $this->getFile($key, true);
+            // Since OPcache only compiles files older than the script execution start, set the file's mtime in the past
+            $ok = $this->write($file, "<?php //{$encodedKey}\n\n{$value}\n", self::$startTime - 10) && $ok;
+
+            if ($allowCompile) {
+                @opcache_invalidate($file, true);
+                @opcache_compile_file($file);
+            }
+            unset(self::$valuesCache[$file]);
+        }
+
+        if (!$ok && !is_writable($this->directory)) {
+            throw new CacheException(\sprintf('Cache directory is not writable (%s).', $this->directory));
+        }
+
+        return $ok;
+    }
+
+    protected function doClear(string $namespace): bool
+    {
+        $this->values = [];
+
+        return $this->doCommonClear($namespace);
+    }
+
+    protected function doDelete(array $ids): bool
+    {
+        foreach ($ids as $id) {
+            unset($this->values[$id]);
+        }
+
+        return $this->doCommonDelete($ids);
+    }
+
+    protected function doUnlink(string $file): bool
+    {
+        unset(self::$valuesCache[$file]);
+
+        if (self::isSupported()) {
+            @opcache_invalidate($file, true);
+        }
+
+        return @unlink($file);
+    }
+
+    private function getFileKey(string $file): string
+    {
+        if (!$h = @fopen($file, 'r')) {
+            return '';
+        }
+
+        $encodedKey = substr(fgets($h), 8);
+        fclose($h);
+
+        return rawurldecode(rtrim($encodedKey));
+    }
+}
+
+/**
+ * @internal
+ */
+class LazyValue
+{
+    public function __construct(
+        public string $file,
+    ) {
+    }
+}

backend/vendor/symfony/cache/Adapter/ProxyAdapter.php

@@ -0,0 +1,226 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ContractsTrait;
+use Symfony\Component\Cache\Traits\ProxyTrait;
+use Symfony\Contracts\Cache\CacheInterface;
+use Symfony\Contracts\Cache\NamespacedPoolInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class ProxyAdapter implements AdapterInterface, NamespacedPoolInterface, CacheInterface, PruneableInterface, ResettableInterface
+{
+    use ContractsTrait;
+    use ProxyTrait;
+
+    private string $namespace = '';
+    private int $namespaceLen;
+    private string $poolHash;
+    private int $defaultLifetime;
+
+    private static \Closure $createCacheItem;
+    private static \Closure $setInnerItem;
+
+    public function __construct(CacheItemPoolInterface $pool, string $namespace = '', int $defaultLifetime = 0)
+    {
+        if ('' !== $namespace) {
+            if ($pool instanceof NamespacedPoolInterface) {
+                $pool = $pool->withSubNamespace($namespace);
+                $this->namespace = $namespace = '';
+            } else {
+                \assert('' !== CacheItem::validateKey($namespace));
+                $this->namespace = $namespace;
+            }
+        }
+        $this->pool = $pool;
+        $this->poolHash = spl_object_hash($pool);
+        $this->namespaceLen = \strlen($namespace);
+        $this->defaultLifetime = $defaultLifetime;
+        self::$createCacheItem ??= \Closure::bind(
+            static function ($key, $innerItem, $poolHash) {
+                $item = new CacheItem();
+                $item->key = $key;
+
+                if (null === $innerItem) {
+                    return $item;
+                }
+
+                $item->value = $innerItem->get();
+                $item->isHit = $innerItem->isHit();
+                $item->innerItem = $innerItem;
+                $item->poolHash = $poolHash;
+
+                if (!$item->unpack() && $innerItem instanceof CacheItem) {
+                    $item->metadata = $innerItem->metadata;
+                }
+                $innerItem->set(null);
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        self::$setInnerItem ??= \Closure::bind(
+            static function (CacheItemInterface $innerItem, CacheItem $item, $expiry = null) {
+                $innerItem->set($item->pack());
+                $innerItem->expiresAt(($expiry ?? $item->expiry) ? \DateTimeImmutable::createFromFormat('U.u', \sprintf('%.6F', $expiry ?? $item->expiry)) : null);
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    public function get(string $key, callable $callback, ?float $beta = null, ?array &$metadata = null): mixed
+    {
+        if (!$this->pool instanceof CacheInterface) {
+            return $this->doGet($this, $key, $callback, $beta, $metadata);
+        }
+
+        return $this->pool->get($this->getId($key), function ($innerItem, bool &$save) use ($key, $callback) {
+            $item = (self::$createCacheItem)($key, $innerItem, $this->poolHash);
+            $item->set($value = $callback($item, $save));
+            (self::$setInnerItem)($innerItem, $item);
+
+            return $value;
+        }, $beta, $metadata);
+    }
+
+    public function getItem(mixed $key): CacheItem
+    {
+        $item = $this->pool->getItem($this->getId($key));
+
+        return (self::$createCacheItem)($key, $item, $this->poolHash);
+    }
+
+    public function getItems(array $keys = []): iterable
+    {
+        if ($this->namespaceLen) {
+            foreach ($keys as $i => $key) {
+                $keys[$i] = $this->getId($key);
+            }
+        }
+
+        return $this->generateItems($this->pool->getItems($keys));
+    }
+
+    public function hasItem(mixed $key): bool
+    {
+        return $this->pool->hasItem($this->getId($key));
+    }
+
+    public function clear(string $prefix = ''): bool
+    {
+        if ($this->pool instanceof AdapterInterface) {
+            return $this->pool->clear($this->namespace.$prefix);
+        }
+
+        return $this->pool->clear();
+    }
+
+    public function deleteItem(mixed $key): bool
+    {
+        return $this->pool->deleteItem($this->getId($key));
+    }
+
+    public function deleteItems(array $keys): bool
+    {
+        if ($this->namespaceLen) {
+            foreach ($keys as $i => $key) {
+                $keys[$i] = $this->getId($key);
+            }
+        }
+
+        return $this->pool->deleteItems($keys);
+    }
+
+    public function save(CacheItemInterface $item): bool
+    {
+        return $this->doSave($item, __FUNCTION__);
+    }
+
+    public function saveDeferred(CacheItemInterface $item): bool
+    {
+        return $this->doSave($item, __FUNCTION__);
+    }
+
+    public function commit(): bool
+    {
+        return $this->pool->commit();
+    }
+
+    public function withSubNamespace(string $namespace): static
+    {
+        $clone = clone $this;
+
+        if ($clone->pool instanceof NamespacedPoolInterface) {
+            $clone->pool = $clone->pool->withSubNamespace($namespace);
+        } else {
+            $clone->namespace .= CacheItem::validateKey($namespace);
+            $clone->namespaceLen = \strlen($clone->namespace);
+        }
+
+        return $clone;
+    }
+
+    private function doSave(CacheItemInterface $item, string $method): bool
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $castItem = (array) $item;
+
+        if (null === $castItem["\0*\0expiry"] && 0 < $this->defaultLifetime) {
+            $castItem["\0*\0expiry"] = microtime(true) + $this->defaultLifetime;
+        }
+
+        if ($castItem["\0*\0poolHash"] === $this->poolHash && $castItem["\0*\0innerItem"]) {
+            $innerItem = $castItem["\0*\0innerItem"];
+        } elseif ($this->pool instanceof AdapterInterface) {
+            // this is an optimization specific for AdapterInterface implementations
+            // so we can save a round-trip to the backend by just creating a new item
+            $innerItem = (self::$createCacheItem)($this->namespace.$castItem["\0*\0key"], null, $this->poolHash);
+        } else {
+            $innerItem = $this->pool->getItem($this->namespace.$castItem["\0*\0key"]);
+        }
+
+        (self::$setInnerItem)($innerItem, $item, $castItem["\0*\0expiry"]);
+
+        return $this->pool->$method($innerItem);
+    }
+
+    private function generateItems(iterable $items): \Generator
+    {
+        $f = self::$createCacheItem;
+
+        foreach ($items as $key => $item) {
+            if ($this->namespaceLen) {
+                $key = substr($key, $this->namespaceLen);
+            }
+
+            yield $key => $f($key, $item, $this->poolHash);
+        }
+    }
+
+    private function getId(mixed $key): string
+    {
+        \assert('' !== CacheItem::validateKey($key));
+
+        return $this->namespace.$key;
+    }
+}

backend/vendor/symfony/cache/Adapter/Psr16Adapter.php

@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ProxyTrait;
+
+/**
+ * Turns a PSR-16 cache into a PSR-6 one.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class Psr16Adapter extends AbstractAdapter implements PruneableInterface, ResettableInterface
+{
+    use ProxyTrait;
+
+    /**
+     * @internal
+     */
+    protected const NS_SEPARATOR = '_';
+
+    private object $miss;
+
+    public function __construct(CacheInterface $pool, string $namespace = '', int $defaultLifetime = 0)
+    {
+        parent::__construct($namespace, $defaultLifetime);
+
+        $this->pool = $pool;
+        $this->miss = new \stdClass();
+    }
+
+    protected function doFetch(array $ids): iterable
+    {
+        foreach ($this->pool->getMultiple($ids, $this->miss) as $key => $value) {
+            if ($this->miss !== $value) {
+                yield $key => $value;
+            }
+        }
+    }
+
+    protected function doHave(string $id): bool
+    {
+        return $this->pool->has($id);
+    }
+
+    protected function doClear(string $namespace): bool
+    {
+        return $this->pool->clear();
+    }
+
+    protected function doDelete(array $ids): bool
+    {
+        return $this->pool->deleteMultiple($ids);
+    }
+
+    protected function doSave(array $values, int $lifetime): array|bool
+    {
+        return $this->pool->setMultiple($values, 0 === $lifetime ? null : $lifetime);
+    }
+}

backend/vendor/symfony/cache/Adapter/RedisAdapter.php

@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+use Symfony\Component\Cache\Traits\RedisTrait;
+
+class RedisAdapter extends AbstractAdapter
+{
+    use RedisTrait;
+
+    public function __construct(\Redis|\RedisArray|\RedisCluster|\Predis\ClientInterface|\Relay\Relay|\Relay\Cluster $redis, string $namespace = '', int $defaultLifetime = 0, ?MarshallerInterface $marshaller = null)
+    {
+        $this->init($redis, $namespace, $defaultLifetime, $marshaller);
+    }
+}

backend/vendor/symfony/cache/Adapter/RedisTagAwareAdapter.php

@@ -0,0 +1,318 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Predis\Connection\Aggregate\ClusterInterface;
+use Predis\Connection\Aggregate\PredisCluster;
+use Predis\Connection\Aggregate\ReplicationInterface;
+use Predis\Connection\Replication\ReplicationInterface as Predis2ReplicationInterface;
+use Predis\Response\ErrorInterface;
+use Predis\Response\Status;
+use Relay\Relay;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\Exception\LogicException;
+use Symfony\Component\Cache\Marshaller\DeflateMarshaller;
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+use Symfony\Component\Cache\Marshaller\TagAwareMarshaller;
+use Symfony\Component\Cache\Traits\RedisTrait;
+
+/**
+ * Stores tag id <> cache id relationship as a Redis Set.
+ *
+ * Set (tag relation info) is stored without expiry (non-volatile), while cache always gets an expiry (volatile) even
+ * if not set by caller. Thus if you configure redis with the right eviction policy you can be safe this tag <> cache
+ * relationship survives eviction (cache cleanup when Redis runs out of memory).
+ *
+ * Redis server 2.8+ with any `volatile-*` eviction policy, OR `noeviction` if you're sure memory will NEVER fill up
+ *
+ * Design limitations:
+ *  - Max 4 billion cache keys per cache tag as limited by Redis Set datatype.
+ *    E.g. If you use a "all" items tag for expiry instead of clear(), that limits you to 4 billion cache items also.
+ *
+ * @see https://redis.io/topics/lru-cache#eviction-policies Documentation for Redis eviction policies.
+ * @see https://redis.io/topics/data-types#sets Documentation for Redis Set datatype.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ * @author André Rømcke <andre.romcke+symfony@gmail.com>
+ */
+class RedisTagAwareAdapter extends AbstractTagAwareAdapter
+{
+    use RedisTrait;
+
+    /**
+     * On cache items without a lifetime set, we set it to 100 days. This is to make sure cache items are
+     * preferred to be evicted over tag Sets, if eviction policy is configured according to requirements.
+     */
+    private const DEFAULT_CACHE_TTL = 8640000;
+
+    /**
+     * detected eviction policy used on Redis server.
+     */
+    private string $redisEvictionPolicy;
+
+    public function __construct(
+        \Redis|Relay|\Relay\Cluster|\RedisArray|\RedisCluster|\Predis\ClientInterface $redis,
+        private string $namespace = '',
+        int $defaultLifetime = 0,
+        ?MarshallerInterface $marshaller = null,
+    ) {
+        if ($redis instanceof \Predis\ClientInterface && $redis->getConnection() instanceof ClusterInterface && !$redis->getConnection() instanceof PredisCluster) {
+            throw new InvalidArgumentException(\sprintf('Unsupported Predis cluster connection: only "%s" is, "%s" given.', PredisCluster::class, get_debug_type($redis->getConnection())));
+        }
+
+        $isRelay = $redis instanceof Relay || $redis instanceof \Relay\Cluster;
+        if ($isRelay || \defined('Redis::OPT_COMPRESSION') && \in_array($redis::class, [\Redis::class, \RedisArray::class, \RedisCluster::class], true)) {
+            $compression = $redis->getOption($isRelay ? Relay::OPT_COMPRESSION : \Redis::OPT_COMPRESSION);
+
+            foreach (\is_array($compression) ? $compression : [$compression] as $c) {
+                if ($isRelay ? Relay::COMPRESSION_NONE : \Redis::COMPRESSION_NONE !== $c) {
+                    throw new InvalidArgumentException(\sprintf('redis compression must be disabled when using "%s", use "%s" instead.', static::class, DeflateMarshaller::class));
+                }
+            }
+        }
+
+        $this->init($redis, $namespace, $defaultLifetime, new TagAwareMarshaller($marshaller));
+    }
+
+    protected function doSave(array $values, int $lifetime, array $addTagData = [], array $delTagData = []): array
+    {
+        $eviction = $this->getRedisEvictionPolicy();
+        if ('noeviction' !== $eviction && !str_starts_with($eviction, 'volatile-')) {
+            throw new LogicException(\sprintf('Redis maxmemory-policy setting "%s" is *not* supported by RedisTagAwareAdapter, use "noeviction" or "volatile-*" eviction policies.', $eviction));
+        }
+
+        // serialize values
+        if (!$serialized = $this->marshaller->marshall($values, $failed)) {
+            return $failed;
+        }
+
+        // While pipeline isn't supported on RedisCluster, other setups will at least benefit from doing this in one op
+        $results = $this->pipeline(static function () use ($serialized, $lifetime, $addTagData, $delTagData, $failed) {
+            // Store cache items, force a ttl if none is set, as there is no MSETEX we need to set each one
+            foreach ($serialized as $id => $value) {
+                yield 'setEx' => [
+                    $id,
+                    0 >= $lifetime ? self::DEFAULT_CACHE_TTL : $lifetime,
+                    $value,
+                ];
+            }
+
+            // Add and Remove Tags
+            foreach ($addTagData as $tagId => $ids) {
+                if (!$failed || $ids = array_diff($ids, $failed)) {
+                    yield 'sAdd' => array_merge([$tagId], $ids);
+                }
+            }
+
+            foreach ($delTagData as $tagId => $ids) {
+                if (!$failed || $ids = array_diff($ids, $failed)) {
+                    yield 'sRem' => array_merge([$tagId], $ids);
+                }
+            }
+        });
+
+        foreach ($results as $id => $result) {
+            // Skip results of SADD/SREM operations, they'll be 1 or 0 depending on if set value already existed or not
+            if (is_numeric($result)) {
+                continue;
+            }
+            // setEx results
+            if (true !== $result && (!$result instanceof Status || Status::get('OK') !== $result)) {
+                $failed[] = $id;
+            }
+        }
+
+        return $failed;
+    }
+
+    protected function doDeleteYieldTags(array $ids): iterable
+    {
+        $lua = <<<'EOLUA'
+                        local v = redis.call('GET', KEYS[1])
+                        local e = redis.pcall('UNLINK', KEYS[1])
+
+                        if type(e) ~= 'number' then
+                            redis.call('DEL', KEYS[1])
+                        end
+
+                        if not v or v:len() <= 13 or v:byte(1) ~= 0x9D or v:byte(6) ~= 0 or v:byte(10) ~= 0x5F then
+                            return ''
+                        end
+
+                        return v:sub(14, 13 + v:byte(13) + v:byte(12) * 256 + v:byte(11) * 65536)
+            EOLUA;
+
+        $results = $this->pipeline(function () use ($ids, $lua) {
+            foreach ($ids as $id) {
+                yield 'eval' => $this->redis instanceof \Predis\ClientInterface ? [$lua, 1, $id] : [$lua, [$id], 1];
+            }
+        });
+
+        foreach ($results as $id => $result) {
+            if ($result instanceof \RedisException || $result instanceof \Relay\Exception || $result instanceof ErrorInterface) {
+                CacheItem::log($this->logger, 'Failed to delete key "{key}": '.$result->getMessage(), ['key' => substr($id, \strlen($this->rootNamespace)), 'exception' => $result]);
+
+                continue;
+            }
+
+            try {
+                yield $id => !\is_string($result) || '' === $result ? [] : $this->marshaller->unmarshall($result);
+            } catch (\Exception) {
+                yield $id => [];
+            }
+        }
+    }
+
+    protected function doDeleteTagRelations(array $tagData): bool
+    {
+        $results = $this->pipeline(static function () use ($tagData) {
+            foreach ($tagData as $tagId => $idList) {
+                array_unshift($idList, $tagId);
+                yield 'sRem' => $idList;
+            }
+        });
+        foreach ($results as $result) {
+            // no-op
+        }
+
+        return true;
+    }
+
+    protected function doInvalidate(array $tagIds): bool
+    {
+        // This script scans the set of items linked to tag: it empties the set
+        // and removes the linked items. When the set is still not empty after
+        // the scan, it means we're in cluster mode and that the linked items
+        // are on other nodes: we move the links to a temporary set and we
+        // garbage collect that set from the client side.
+
+        $lua = <<<'EOLUA'
+                        redis.replicate_commands()
+
+                        local cursor = '0'
+                        local id = KEYS[1]
+                        repeat
+                            local result = redis.call('SSCAN', id, cursor, 'COUNT', 5000);
+                            cursor = result[1];
+                            local rems = {}
+
+                            for _, v in ipairs(result[2]) do
+                                local ok, _ = pcall(redis.call, 'DEL', ARGV[1]..v)
+                                if ok then
+                                    table.insert(rems, v)
+                                end
+                            end
+                            if 0 < #rems then
+                                redis.call('SREM', id, unpack(rems))
+                            end
+                        until '0' == cursor;
+
+                        redis.call('SUNIONSTORE', '{'..id..'}'..id, id)
+                        redis.call('DEL', id)
+
+                        return redis.call('SSCAN', '{'..id..'}'..id, '0', 'COUNT', 5000)
+            EOLUA;
+
+        $results = $this->pipeline(function () use ($tagIds, $lua) {
+            if ($this->redis instanceof \Predis\ClientInterface) {
+                $prefix = $this->redis->getOptions()->prefix ? $this->redis->getOptions()->prefix->getPrefix() : '';
+            } elseif (\is_array($prefix = $this->redis->getOption(($this->redis instanceof Relay || $this->redis instanceof \Relay\Cluster) ? Relay::OPT_PREFIX : \Redis::OPT_PREFIX) ?? '')) {
+                $prefix = current($prefix);
+            }
+
+            foreach ($tagIds as $id) {
+                yield 'eval' => $this->redis instanceof \Predis\ClientInterface ? [$lua, 1, $id, $prefix] : [$lua, [$id, $prefix], 1];
+            }
+        });
+
+        $lua = <<<'EOLUA'
+                        redis.replicate_commands()
+
+                        local id = KEYS[1]
+                        local cursor = table.remove(ARGV)
+                        redis.call('SREM', '{'..id..'}'..id, unpack(ARGV))
+
+                        return redis.call('SSCAN', '{'..id..'}'..id, cursor, 'COUNT', 5000)
+            EOLUA;
+
+        $success = true;
+        foreach ($results as $id => $values) {
+            if ($values instanceof \RedisException || $values instanceof \Relay\Exception || $values instanceof ErrorInterface) {
+                CacheItem::log($this->logger, 'Failed to invalidate key "{key}": '.$values->getMessage(), ['key' => substr($id, \strlen($this->namespace)), 'exception' => $values]);
+                $success = false;
+
+                continue;
+            }
+
+            [$cursor, $ids] = $values;
+
+            while ($ids || '0' !== $cursor) {
+                $this->doDelete($ids);
+
+                $evalArgs = [$id, $cursor];
+                array_splice($evalArgs, 1, 0, $ids);
+
+                if ($this->redis instanceof \Predis\ClientInterface) {
+                    array_unshift($evalArgs, $lua, 1);
+                } else {
+                    $evalArgs = [$lua, $evalArgs, 1];
+                }
+
+                $results = $this->pipeline(function () use ($evalArgs) {
+                    yield 'eval' => $evalArgs;
+                });
+
+                foreach ($results as [$cursor, $ids]) {
+                    // no-op
+                }
+            }
+        }
+
+        return $success;
+    }
+
+    private function getRedisEvictionPolicy(): string
+    {
+        if (isset($this->redisEvictionPolicy)) {
+            return $this->redisEvictionPolicy;
+        }
+
+        $hosts = $this->getHosts();
+        $host = reset($hosts);
+        if ($host instanceof \Predis\Client) {
+            $connection = $host->getConnection();
+
+            // Predis supports info command only on the master in replication environments
+            if ($connection instanceof ReplicationInterface) {
+                $hosts = [$host->getClientFor('master')];
+            } elseif ($connection instanceof Predis2ReplicationInterface) {
+                $connection->switchToMaster();
+                $hosts = [$host];
+            }
+        }
+
+        foreach ($hosts as $host) {
+            $info = $host->info('Memory');
+
+            if (false === $info || null === $info || $info instanceof ErrorInterface) {
+                continue;
+            }
+
+            $info = $info['Memory'] ?? $info;
+
+            return $this->redisEvictionPolicy = $info['maxmemory_policy'] ?? '';
+        }
+
+        return $this->redisEvictionPolicy = '';
+    }
+}

backend/vendor/symfony/cache/Adapter/TagAwareAdapter.php

@@ -0,0 +1,387 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\InvalidArgumentException;
+use Psr\Log\LoggerAwareInterface;
+use Psr\Log\LoggerAwareTrait;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\BadMethodCallException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Component\Cache\Traits\ContractsTrait;
+use Symfony\Contracts\Cache\NamespacedPoolInterface;
+use Symfony\Contracts\Cache\TagAwareCacheInterface;
+
+/**
+ * Implements simple and robust tag-based invalidation suitable for use with volatile caches.
+ *
+ * This adapter works by storing a version for each tags. When saving an item, it is stored together with its tags and
+ * their corresponding versions. When retrieving an item, those tag versions are compared to the current version of
+ * each tags. Invalidation is achieved by deleting tags, thereby ensuring that their versions change even when the
+ * storage is out of space. When versions of non-existing tags are requested for item commits, this adapter assigns a
+ * new random version to them.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ * @author Sergey Belyshkin <sbelyshkin@gmail.com>
+ */
+class TagAwareAdapter implements TagAwareAdapterInterface, TagAwareCacheInterface, NamespacedPoolInterface, PruneableInterface, ResettableInterface, LoggerAwareInterface
+{
+    use ContractsTrait;
+    use LoggerAwareTrait;
+
+    public const TAGS_PREFIX = "\1tags\1";
+
+    private array $deferred = [];
+    private AdapterInterface $pool;
+    private AdapterInterface $tags;
+    private array $knownTagVersions = [];
+
+    private static \Closure $setCacheItemTags;
+    private static \Closure $setTagVersions;
+    private static \Closure $getTagsByKey;
+    private static \Closure $saveTags;
+
+    public function __construct(
+        AdapterInterface $itemsPool,
+        ?AdapterInterface $tagsPool = null,
+        private float $knownTagVersionsTtl = 0.15,
+    ) {
+        $this->pool = $itemsPool;
+        $this->tags = $tagsPool ?? $itemsPool;
+        self::$setCacheItemTags ??= \Closure::bind(
+            static function (array $items, array $itemTags) {
+                foreach ($items as $key => $item) {
+                    $item->isTaggable = true;
+
+                    if (isset($itemTags[$key])) {
+                        $tags = array_keys($itemTags[$key]);
+                        $item->metadata[CacheItem::METADATA_TAGS] = array_combine($tags, $tags);
+                    } else {
+                        $item->value = null;
+                        $item->isHit = false;
+                        $item->metadata = [];
+                    }
+                }
+
+                return $items;
+            },
+            null,
+            CacheItem::class
+        );
+        self::$setTagVersions ??= \Closure::bind(
+            static function (array $items, array $tagVersions) {
+                foreach ($items as $item) {
+                    $item->newMetadata[CacheItem::METADATA_TAGS] = array_intersect_key($tagVersions, $item->newMetadata[CacheItem::METADATA_TAGS] ?? []);
+                }
+            },
+            null,
+            CacheItem::class
+        );
+        self::$getTagsByKey ??= \Closure::bind(
+            static function ($deferred) {
+                $tagsByKey = [];
+                foreach ($deferred as $key => $item) {
+                    $tagsByKey[$key] = $item->newMetadata[CacheItem::METADATA_TAGS] ?? [];
+                    $item->metadata = $item->newMetadata;
+                }
+
+                return $tagsByKey;
+            },
+            null,
+            CacheItem::class
+        );
+        self::$saveTags ??= \Closure::bind(
+            static function (AdapterInterface $tagsAdapter, array $tags) {
+                ksort($tags);
+
+                foreach ($tags as $v) {
+                    $v->expiry = 0;
+                    $tagsAdapter->saveDeferred($v);
+                }
+
+                return $tagsAdapter->commit();
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    public function invalidateTags(array $tags): bool
+    {
+        $ids = [];
+        foreach ($tags as $tag) {
+            \assert('' !== CacheItem::validateKey($tag));
+            unset($this->knownTagVersions[$tag]);
+            $ids[] = $tag.static::TAGS_PREFIX;
+        }
+
+        return !$tags || $this->tags->deleteItems($ids);
+    }
+
+    public function hasItem(mixed $key): bool
+    {
+        return $this->getItem($key)->isHit();
+    }
+
+    public function getItem(mixed $key): CacheItem
+    {
+        foreach ($this->getItems([$key]) as $item) {
+            return $item;
+        }
+    }
+
+    public function getItems(array $keys = []): iterable
+    {
+        $tagKeys = [];
+        $commit = false;
+
+        foreach ($keys as $key) {
+            if ('' !== $key && \is_string($key)) {
+                $commit = $commit || isset($this->deferred[$key]);
+            }
+        }
+
+        if ($commit) {
+            $this->commit();
+        }
+
+        try {
+            $items = $this->pool->getItems($keys);
+        } catch (InvalidArgumentException $e) {
+            $this->pool->getItems($keys); // Should throw an exception
+
+            throw $e;
+        }
+
+        $bufferedItems = $itemTags = [];
+
+        foreach ($items as $key => $item) {
+            if (null !== $tags = $item->getMetadata()[CacheItem::METADATA_TAGS] ?? null) {
+                $itemTags[$key] = $tags;
+            }
+
+            $bufferedItems[$key] = $item;
+
+            if (null === $tags) {
+                $key = "\0tags\0".$key;
+                $tagKeys[$key] = $key; // BC with pools populated before v6.1
+            }
+        }
+
+        if ($tagKeys) {
+            foreach ($this->pool->getItems($tagKeys) as $key => $item) {
+                if ($item->isHit()) {
+                    $itemTags[substr($key, \strlen("\0tags\0"))] = $item->get() ?: [];
+                }
+            }
+        }
+
+        $tagVersions = $this->getTagVersions($itemTags, false);
+        foreach ($itemTags as $key => $tags) {
+            foreach ($tags as $tag => $version) {
+                if ($tagVersions[$tag] !== $version) {
+                    unset($itemTags[$key]);
+                    continue 2;
+                }
+            }
+        }
+        $tagVersions = null;
+
+        return (self::$setCacheItemTags)($bufferedItems, $itemTags);
+    }
+
+    public function clear(string $prefix = ''): bool
+    {
+        if ('' !== $prefix) {
+            foreach ($this->deferred as $key => $item) {
+                if (str_starts_with($key, $prefix)) {
+                    unset($this->deferred[$key]);
+                }
+            }
+
+            return $this->pool->clear($prefix);
+        } else {
+            $this->deferred = [];
+        }
+
+        return $this->pool->clear();
+    }
+
+    public function deleteItem(mixed $key): bool
+    {
+        return $this->deleteItems([$key]);
+    }
+
+    public function deleteItems(array $keys): bool
+    {
+        foreach ($keys as $key) {
+            if ('' !== $key && \is_string($key)) {
+                $keys[] = "\0tags\0".$key; // BC with pools populated before v6.1
+            }
+        }
+
+        return $this->pool->deleteItems($keys);
+    }
+
+    public function save(CacheItemInterface $item): bool
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return $this->commit();
+    }
+
+    public function saveDeferred(CacheItemInterface $item): bool
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return true;
+    }
+
+    public function commit(): bool
+    {
+        if (!$items = $this->deferred) {
+            return true;
+        }
+
+        $tagVersions = $this->getTagVersions((self::$getTagsByKey)($items), true);
+        (self::$setTagVersions)($items, $tagVersions);
+
+        $ok = true;
+        foreach ($items as $key => $item) {
+            if ($this->pool->saveDeferred($item)) {
+                unset($this->deferred[$key]);
+            } else {
+                $ok = false;
+            }
+        }
+        $ok = $this->pool->commit() && $ok;
+
+        $tagVersions = array_keys($tagVersions);
+        (self::$setTagVersions)($items, array_combine($tagVersions, $tagVersions));
+
+        return $ok;
+    }
+
+    /**
+     * @throws BadMethodCallException When the item pool is not a NamespacedPoolInterface
+     */
+    public function withSubNamespace(string $namespace): static
+    {
+        if (!$this->pool instanceof NamespacedPoolInterface) {
+            throw new BadMethodCallException(\sprintf('Cannot call "%s::withSubNamespace()": this class doesn\'t implement "%s".', get_debug_type($this->pool), NamespacedPoolInterface::class));
+        }
+
+        $knownTagVersions = &$this->knownTagVersions; // ensures clones share the same array
+        $clone = clone $this;
+        $clone->deferred = [];
+        $clone->pool = $this->pool->withSubNamespace($namespace);
+
+        return $clone;
+    }
+
+    public function prune(): bool
+    {
+        return $this->pool instanceof PruneableInterface && $this->pool->prune();
+    }
+
+    public function reset(): void
+    {
+        $this->commit();
+        $this->knownTagVersions = [];
+        $this->pool instanceof ResettableInterface && $this->pool->reset();
+        $this->tags instanceof ResettableInterface && $this->tags->reset();
+    }
+
+    public function __serialize(): array
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    public function __unserialize(array $data): void
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
+    public function __destruct()
+    {
+        $this->commit();
+    }
+
+    private function getTagVersions(array $tagsByKey, bool $persistTags): array
+    {
+        $tagVersions = [];
+        $fetchTagVersions = $persistTags;
+
+        foreach ($tagsByKey as $tags) {
+            $tagVersions += $tags;
+            if ($fetchTagVersions) {
+                continue;
+            }
+            foreach ($tags as $tag => $version) {
+                if ($tagVersions[$tag] !== $version) {
+                    $fetchTagVersions = true;
+                }
+            }
+        }
+
+        if (!$tagVersions) {
+            return [];
+        }
+
+        $now = microtime(true);
+        $tags = [];
+        foreach ($tagVersions as $tag => $version) {
+            $tags[$tag.static::TAGS_PREFIX] = $tag;
+            $knownTagVersion = $this->knownTagVersions[$tag] ?? [0, null];
+            if ($fetchTagVersions || $now > $knownTagVersion[0] || $knownTagVersion[1] !== $version) {
+                // reuse previously fetched tag versions until the expiration
+                $fetchTagVersions = true;
+            }
+        }
+
+        if (!$fetchTagVersions) {
+            return $tagVersions;
+        }
+
+        $newTags = [];
+        $newVersion = null;
+        $expiration = $now + $this->knownTagVersionsTtl;
+        foreach ($this->tags->getItems(array_keys($tags)) as $tag => $version) {
+            unset($this->knownTagVersions[$tag = $tags[$tag]]); // update FIFO
+            if (null !== $tagVersions[$tag] = $version->get()) {
+                $this->knownTagVersions[$tag] = [$expiration, $tagVersions[$tag]];
+            } elseif ($persistTags) {
+                $newTags[$tag] = $version->set($newVersion ??= random_bytes(6));
+                $tagVersions[$tag] = $newVersion;
+                $this->knownTagVersions[$tag] = [$expiration, $newVersion];
+            }
+        }
+
+        if ($newTags) {
+            (self::$saveTags)($this->tags, $newTags);
+        }
+
+        while ($now > ($this->knownTagVersions[$tag = array_key_first($this->knownTagVersions) ?? ''][0] ?? \INF)) {
+            unset($this->knownTagVersions[$tag]);
+        }
+
+        return $tagVersions;
+    }
+}

backend/vendor/symfony/cache/Adapter/TagAwareAdapterInterface.php

@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\InvalidArgumentException;
+
+/**
+ * Interface for invalidating cached items using tags.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+interface TagAwareAdapterInterface extends AdapterInterface
+{
+    /**
+     * Invalidates cached items using tags.
+     *
+     * @param string[] $tags An array of tags to invalidate
+     *
+     * @throws InvalidArgumentException When $tags is not valid
+     */
+    public function invalidateTags(array $tags): bool;
+}

backend/vendor/symfony/cache/Adapter/TraceableAdapter.php

@@ -0,0 +1,311 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Psr\Cache\CacheItemInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\BadMethodCallException;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\Cache\ResettableInterface;
+use Symfony\Contracts\Cache\CacheInterface;
+use Symfony\Contracts\Cache\NamespacedPoolInterface;
+use Symfony\Contracts\Service\ResetInterface;
+
+/**
+ * An adapter that collects data about all cache calls.
+ *
+ * @author Aaron Scherer <aequasi@gmail.com>
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class TraceableAdapter implements AdapterInterface, CacheInterface, NamespacedPoolInterface, PruneableInterface, ResettableInterface
+{
+    private string $namespace = '';
+    private array $calls = [];
+
+    public function __construct(
+        protected AdapterInterface $pool,
+        protected readonly ?\Closure $disabled = null,
+    ) {
+    }
+
+    /**
+     * @throws BadMethodCallException When the item pool is not a CacheInterface
+     */
+    public function get(string $key, callable $callback, ?float $beta = null, ?array &$metadata = null): mixed
+    {
+        if (!$this->pool instanceof CacheInterface) {
+            throw new BadMethodCallException(\sprintf('Cannot call "%s::get()": this class doesn\'t implement "%s".', get_debug_type($this->pool), CacheInterface::class));
+        }
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->get($key, $callback, $beta, $metadata);
+        }
+
+        $isHit = true;
+        $callback = function (CacheItem $item, bool &$save) use ($callback, &$isHit) {
+            $isHit = $item->isHit();
+
+            return $callback($item, $save);
+        };
+
+        $event = $this->start(__FUNCTION__);
+        try {
+            $value = $this->pool->get($key, $callback, $beta, $metadata);
+            $event->result[$key] = get_debug_type($value);
+        } finally {
+            $event->end = microtime(true);
+        }
+        if ($isHit) {
+            ++$event->hits;
+        } else {
+            ++$event->misses;
+        }
+
+        return $value;
+    }
+
+    public function getItem(mixed $key): CacheItem
+    {
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->getItem($key);
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            $item = $this->pool->getItem($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+        if ($event->result[$key] = $item->isHit()) {
+            ++$event->hits;
+        } else {
+            ++$event->misses;
+        }
+
+        return $item;
+    }
+
+    public function hasItem(mixed $key): bool
+    {
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->hasItem($key);
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$key] = $this->pool->hasItem($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function deleteItem(mixed $key): bool
+    {
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->deleteItem($key);
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$key] = $this->pool->deleteItem($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function save(CacheItemInterface $item): bool
+    {
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->save($item);
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$item->getKey()] = $this->pool->save($item);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function saveDeferred(CacheItemInterface $item): bool
+    {
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->saveDeferred($item);
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$item->getKey()] = $this->pool->saveDeferred($item);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function getItems(array $keys = []): iterable
+    {
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->getItems($keys);
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            $result = $this->pool->getItems($keys);
+        } finally {
+            $event->end = microtime(true);
+        }
+        $f = function () use ($result, $event) {
+            $event->result = [];
+            foreach ($result as $key => $item) {
+                if ($event->result[$key] = $item->isHit()) {
+                    ++$event->hits;
+                } else {
+                    ++$event->misses;
+                }
+                yield $key => $item;
+            }
+        };
+
+        return $f();
+    }
+
+    public function clear(string $prefix = ''): bool
+    {
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->clear($prefix);
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            if ($this->pool instanceof AdapterInterface) {
+                return $event->result = $this->pool->clear($prefix);
+            }
+
+            return $event->result = $this->pool->clear();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function deleteItems(array $keys): bool
+    {
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->deleteItems($keys);
+        }
+        $event = $this->start(__FUNCTION__);
+        $event->result['keys'] = $keys;
+        try {
+            return $event->result['result'] = $this->pool->deleteItems($keys);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function commit(): bool
+    {
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->commit();
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->commit();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function prune(): bool
+    {
+        if (!$this->pool instanceof PruneableInterface) {
+            return false;
+        }
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->prune();
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->prune();
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function reset(): void
+    {
+        if ($this->pool instanceof ResetInterface) {
+            $this->pool->reset();
+        }
+
+        $this->clearCalls();
+    }
+
+    public function delete(string $key): bool
+    {
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->deleteItem($key);
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result[$key] = $this->pool->deleteItem($key);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+
+    public function getCalls(): array
+    {
+        return $this->calls;
+    }
+
+    public function clearCalls(): void
+    {
+        $this->calls = [];
+    }
+
+    public function getPool(): AdapterInterface
+    {
+        return $this->pool;
+    }
+
+    /**
+     * @throws BadMethodCallException When the item pool is not a NamespacedPoolInterface
+     */
+    public function withSubNamespace(string $namespace): static
+    {
+        if (!$this->pool instanceof NamespacedPoolInterface) {
+            throw new BadMethodCallException(\sprintf('Cannot call "%s::withSubNamespace()": this class doesn\'t implement "%s".', get_debug_type($this->pool), NamespacedPoolInterface::class));
+        }
+
+        $calls = &$this->calls; // ensures clones share the same array
+        $clone = clone $this;
+        $clone->namespace .= CacheItem::validateKey($namespace).':';
+        $clone->pool = $this->pool->withSubNamespace($namespace);
+
+        return $clone;
+    }
+
+    protected function start(string $name): TraceableAdapterEvent
+    {
+        $this->calls[] = $event = new TraceableAdapterEvent();
+        $event->name = $name;
+        $event->start = microtime(true);
+        $event->namespace = $this->namespace;
+
+        return $event;
+    }
+}
+
+/**
+ * @internal
+ */
+class TraceableAdapterEvent
+{
+    public string $name;
+    public float $start;
+    public float $end;
+    public array|bool $result;
+    public int $hits = 0;
+    public int $misses = 0;
+    public string $namespace;
+}

backend/vendor/symfony/cache/Adapter/TraceableTagAwareAdapter.php

@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Adapter;
+
+use Symfony\Contracts\Cache\TagAwareCacheInterface;
+
+/**
+ * @author Robin Chalas <robin.chalas@gmail.com>
+ */
+class TraceableTagAwareAdapter extends TraceableAdapter implements TagAwareAdapterInterface, TagAwareCacheInterface
+{
+    public function __construct(TagAwareAdapterInterface $pool, ?\Closure $disabled = null)
+    {
+        parent::__construct($pool, $disabled);
+    }
+
+    public function invalidateTags(array $tags): bool
+    {
+        if ($this->disabled?->__invoke()) {
+            return $this->pool->invalidateTags($tags);
+        }
+        $event = $this->start(__FUNCTION__);
+        try {
+            return $event->result = $this->pool->invalidateTags($tags);
+        } finally {
+            $event->end = microtime(true);
+        }
+    }
+}

backend/vendor/symfony/cache/CHANGELOG.md

@@ -0,0 +1,167 @@
+CHANGELOG
+=========
+
+7.4
+---
+
+ * Bump ext-redis to 6.1 and ext-relay to 0.12 minimum
+
+7.3
+---
+
+ * Add support for `\Relay\Cluster` in `RedisAdapter`
+ * Add support for `valkey:` / `valkeys:` schemes
+ * Add support for namespace-based invalidation
+ * Rename options "redis_cluster" and "redis_sentinel" to "cluster" and "sentinel" respectively
+
+7.2
+---
+
+ * `igbinary_serialize()` is no longer used instead of `serialize()` by default when the igbinary extension is installed,
+   due to behavior compatibilities between the two
+ * Add optional `Psr\Clock\ClockInterface` parameter to `ArrayAdapter`
+
+7.1
+---
+
+ * Add option `sentinel_master` as an alias for `redis_sentinel`
+ * Deprecate `CouchbaseBucketAdapter`, use `CouchbaseCollectionAdapter`
+ * Add support for URL encoded characters in Couchbase DSN
+ * Add support for using DSN with PDOAdapter
+ * The algorithm for the default cache namespace changed from SHA256 to XXH128
+
+7.0
+---
+
+ * Add parameter `$isSameDatabase` to `DoctrineDbalAdapter::configureSchema()`
+ * Drop support for Postgres < 9.5 and SQL Server < 2008 in `DoctrineDbalAdapter`
+
+6.4
+---
+
+ * `EarlyExpirationHandler` no longer implements `MessageHandlerInterface`, rely on `AsMessageHandler` instead
+
+6.3
+---
+
+ * Add support for Relay PHP extension for Redis
+ * Updates to allow Redis cluster connections using predis/predis:^2.0
+ * Add optional parameter `$isSameDatabase` to `DoctrineDbalAdapter::configureSchema()`
+
+6.1
+---
+
+ * Add support for ACL auth in RedisAdapter
+ * Improve reliability and performance of `TagAwareAdapter` by making tag versions an integral part of item value
+
+6.0
+---
+
+ * Remove `DoctrineProvider` and `DoctrineAdapter`
+ * Remove support of Doctrine DBAL in `PdoAdapter`
+
+5.4
+---
+
+ * Deprecate `DoctrineProvider` and `DoctrineAdapter` because these classes have been added to the `doctrine/cache` package
+ * Add `DoctrineDbalAdapter` identical to `PdoAdapter` for `Doctrine\DBAL\Connection` or DBAL URL
+ * Deprecate usage of `PdoAdapter` with `Doctrine\DBAL\Connection` or DBAL URL
+
+5.3
+---
+
+ * added support for connecting to Redis Sentinel clusters when using the Redis PHP extension
+ * add support for a custom serializer to the `ApcuAdapter` class
+
+5.2.0
+-----
+
+ * added integration with Messenger to allow computing cached values in a worker
+ * allow ISO 8601 time intervals to specify default lifetime
+
+5.1.0
+-----
+
+ * added max-items + LRU + max-lifetime capabilities to `ArrayCache`
+ * added `CouchbaseBucketAdapter`
+ * added context `cache-adapter` to log messages
+
+5.0.0
+-----
+
+ * removed all PSR-16 implementations in the `Simple` namespace
+ * removed `SimpleCacheAdapter`
+ * removed `AbstractAdapter::unserialize()`
+ * removed `CacheItem::getPreviousTags()`
+
+4.4.0
+-----
+
+ * added support for connecting to Redis Sentinel clusters
+ * added argument `$prefix` to `AdapterInterface::clear()`
+ * improved `RedisTagAwareAdapter` to support Redis server >= 2.8 and up to 4B items per tag
+ * added `TagAwareMarshaller` for optimized data storage when using `AbstractTagAwareAdapter`
+ * added `DeflateMarshaller` to compress serialized values
+ * removed support for phpredis 4 `compression`
+ * [BC BREAK] `RedisTagAwareAdapter` is not compatible with `RedisCluster` from `Predis` anymore, use `phpredis` instead
+ * Marked the `CacheDataCollector` class as `@final`.
+ * added `SodiumMarshaller` to encrypt/decrypt values using libsodium
+
+4.3.0
+-----
+
+ * removed `psr/simple-cache` dependency, run `composer require psr/simple-cache` if you need it
+ * deprecated all PSR-16 adapters, use `Psr16Cache` or `Symfony\Contracts\Cache\CacheInterface` implementations instead
+ * deprecated `SimpleCacheAdapter`, use `Psr16Adapter` instead
+
+4.2.0
+-----
+
+ * added support for connecting to Redis clusters via DSN
+ * added support for configuring multiple Memcached servers via DSN
+ * added `MarshallerInterface` and `DefaultMarshaller` to allow changing the serializer and provide one that automatically uses igbinary when available
+ * implemented `CacheInterface`, which provides stampede protection via probabilistic early expiration and should become the preferred way to use a cache
+ * added sub-second expiry accuracy for backends that support it
+ * added support for phpredis 4 `compression` and `tcp_keepalive` options
+ * added automatic table creation when using Doctrine DBAL with PDO-based backends
+ * throw `LogicException` when `CacheItem::tag()` is called on an item coming from a non tag-aware pool
+ * deprecated `CacheItem::getPreviousTags()`, use `CacheItem::getMetadata()` instead
+ * deprecated the `AbstractAdapter::unserialize()` and `AbstractCache::unserialize()` methods
+ * added `CacheCollectorPass` (originally in `FrameworkBundle`)
+ * added `CachePoolClearerPass` (originally in `FrameworkBundle`)
+ * added `CachePoolPass` (originally in `FrameworkBundle`)
+ * added `CachePoolPrunerPass` (originally in `FrameworkBundle`)
+
+3.4.0
+-----
+
+ * added using options from Memcached DSN
+ * added PruneableInterface so PSR-6 or PSR-16 cache implementations can declare support for manual stale cache pruning
+ * added prune logic to FilesystemTrait, PhpFilesTrait, PdoTrait, TagAwareAdapter and ChainTrait
+ * now FilesystemAdapter, PhpFilesAdapter, FilesystemCache, PhpFilesCache, PdoAdapter, PdoCache, ChainAdapter, and
+   ChainCache implement PruneableInterface and support manual stale cache pruning
+
+3.3.0
+-----
+
+ * added CacheItem::getPreviousTags() to get bound tags coming from the pool storage if any
+ * added PSR-16 "Simple Cache" implementations for all existing PSR-6 adapters
+ * added Psr6Cache and SimpleCacheAdapter for bidirectional interoperability between PSR-6 and PSR-16
+ * added MemcachedAdapter (PSR-6) and MemcachedCache (PSR-16)
+ * added TraceableAdapter (PSR-6) and TraceableCache (PSR-16)
+
+3.2.0
+-----
+
+ * added TagAwareAdapter for tags-based invalidation
+ * added PdoAdapter with PDO and Doctrine DBAL support
+ * added PhpArrayAdapter and PhpFilesAdapter for OPcache-backed shared memory storage (PHP 7+ only)
+ * added NullAdapter
+
+3.1.0
+-----
+
+ * added the component with strict PSR-6 implementations
+ * added ApcuAdapter, ArrayAdapter, FilesystemAdapter and RedisAdapter
+ * added AbstractAdapter, ChainAdapter and ProxyAdapter
+ * added DoctrineAdapter and DoctrineProvider for bidirectional interoperability with Doctrine Cache

backend/vendor/symfony/cache/CacheItem.php

@@ -0,0 +1,201 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\Exception\LogicException;
+use Symfony\Contracts\Cache\ItemInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+final class CacheItem implements ItemInterface
+{
+    private const METADATA_EXPIRY_OFFSET = 1527506807;
+    private const VALUE_WRAPPER = "\xA9";
+
+    protected string $key;
+    protected mixed $value = null;
+    protected bool $isHit = false;
+    protected float|int|null $expiry = null;
+    protected array $metadata = [];
+    protected array $newMetadata = [];
+    protected ?CacheItemInterface $innerItem = null;
+    protected ?string $poolHash = null;
+    protected bool $isTaggable = false;
+
+    public function getKey(): string
+    {
+        return $this->key;
+    }
+
+    public function get(): mixed
+    {
+        return $this->value;
+    }
+
+    public function isHit(): bool
+    {
+        return $this->isHit;
+    }
+
+    /**
+     * @return $this
+     */
+    public function set($value): static
+    {
+        $this->value = $value;
+
+        return $this;
+    }
+
+    /**
+     * @return $this
+     */
+    public function expiresAt(?\DateTimeInterface $expiration): static
+    {
+        $this->expiry = null !== $expiration ? (float) $expiration->format('U.u') : null;
+
+        return $this;
+    }
+
+    /**
+     * @return $this
+     */
+    public function expiresAfter(mixed $time): static
+    {
+        if (null === $time) {
+            $this->expiry = null;
+        } elseif ($time instanceof \DateInterval) {
+            $this->expiry = microtime(true) + \DateTimeImmutable::createFromFormat('U', 0)->add($time)->format('U.u');
+        } elseif (\is_int($time)) {
+            $this->expiry = $time + microtime(true);
+        } else {
+            throw new InvalidArgumentException(\sprintf('Expiration date must be an integer, a DateInterval or null, "%s" given.', get_debug_type($time)));
+        }
+
+        return $this;
+    }
+
+    public function tag(mixed $tags): static
+    {
+        if (!$this->isTaggable) {
+            throw new LogicException(\sprintf('Cache item "%s" comes from a non tag-aware pool: you cannot tag it.', $this->key));
+        }
+        if (!\is_array($tags) && !$tags instanceof \Traversable) { // don't use is_iterable(), it's slow
+            $tags = [$tags];
+        }
+        foreach ($tags as $tag) {
+            if (!\is_string($tag) && !$tag instanceof \Stringable) {
+                throw new InvalidArgumentException(\sprintf('Cache tag must be string or object that implements __toString(), "%s" given.', get_debug_type($tag)));
+            }
+            $tag = (string) $tag;
+            if (isset($this->newMetadata[self::METADATA_TAGS][$tag])) {
+                continue;
+            }
+            if ('' === $tag) {
+                throw new InvalidArgumentException('Cache tag length must be greater than zero.');
+            }
+            if (false !== strpbrk($tag, self::RESERVED_CHARACTERS)) {
+                throw new InvalidArgumentException(\sprintf('Cache tag "%s" contains reserved characters "%s".', $tag, self::RESERVED_CHARACTERS));
+            }
+            $this->newMetadata[self::METADATA_TAGS][$tag] = $tag;
+        }
+
+        return $this;
+    }
+
+    public function getMetadata(): array
+    {
+        return $this->metadata;
+    }
+
+    /**
+     * Validates a cache key according to PSR-6.
+     *
+     * @param mixed $key The key to validate
+     *
+     * @throws InvalidArgumentException When $key is not valid
+     */
+    public static function validateKey($key): string
+    {
+        if (!\is_string($key)) {
+            throw new InvalidArgumentException(\sprintf('Cache key must be string, "%s" given.', get_debug_type($key)));
+        }
+        if ('' === $key) {
+            throw new InvalidArgumentException('Cache key length must be greater than zero.');
+        }
+        if (false !== strpbrk($key, self::RESERVED_CHARACTERS)) {
+            throw new InvalidArgumentException(\sprintf('Cache key "%s" contains reserved characters "%s".', $key, self::RESERVED_CHARACTERS));
+        }
+
+        return $key;
+    }
+
+    /**
+     * Internal logging helper.
+     *
+     * @internal
+     */
+    public static function log(?LoggerInterface $logger, string $message, array $context = []): void
+    {
+        if ($logger) {
+            $logger->warning($message, $context);
+        } else {
+            $replace = [];
+            foreach ($context as $k => $v) {
+                if (\is_scalar($v)) {
+                    $replace['{'.$k.'}'] = $v;
+                }
+            }
+            @trigger_error(strtr($message, $replace), \E_USER_WARNING);
+        }
+    }
+
+    private function pack(): mixed
+    {
+        if (!$m = $this->newMetadata) {
+            return $this->value;
+        }
+        $valueWrapper = self::VALUE_WRAPPER;
+
+        return new $valueWrapper($this->value, $m + ['expiry' => $this->expiry]);
+    }
+
+    private function unpack(): bool
+    {
+        $v = $this->value;
+        $valueWrapper = self::VALUE_WRAPPER;
+
+        if ($v instanceof $valueWrapper) {
+            $this->value = $v->value;
+            $this->metadata = $v->metadata;
+
+            return true;
+        }
+
+        if (!\is_array($v) || 1 !== \count($v) || 10 !== \strlen($k = (string) array_key_first($v)) || "\x9D" !== $k[0] || "\0" !== $k[5] || "\x5F" !== $k[9]) {
+            return false;
+        }
+
+        // BC with pools populated before v6.1
+        $this->value = $v[$k];
+        $this->metadata = unpack('Vexpiry/Nctime', substr($k, 1, -1));
+        $this->metadata['expiry'] += self::METADATA_EXPIRY_OFFSET;
+
+        return true;
+    }
+}
+
+// @php-cs-fixer-ignore protected_to_private Friend-level scope access relies on protected properties

backend/vendor/symfony/cache/DataCollector/CacheDataCollector.php

@@ -0,0 +1,187 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\DataCollector;
+
+use Symfony\Component\Cache\Adapter\TraceableAdapter;
+use Symfony\Component\Cache\Adapter\TraceableAdapterEvent;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\DataCollector\DataCollector;
+use Symfony\Component\HttpKernel\DataCollector\LateDataCollectorInterface;
+
+/**
+ * @author Aaron Scherer <aequasi@gmail.com>
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ *
+ * @final
+ */
+class CacheDataCollector extends DataCollector implements LateDataCollectorInterface
+{
+    /**
+     * @var TraceableAdapter[]
+     */
+    private array $instances = [];
+
+    public function addInstance(string $name, TraceableAdapter $instance): void
+    {
+        $this->instances[$name] = $instance;
+    }
+
+    public function collect(Request $request, Response $response, ?\Throwable $exception = null): void
+    {
+        $this->lateCollect();
+    }
+
+    public function reset(): void
+    {
+        $this->data = [];
+        foreach ($this->instances as $instance) {
+            $instance->clearCalls();
+        }
+    }
+
+    public function lateCollect(): void
+    {
+        $empty = ['calls' => [], 'adapters' => [], 'config' => [], 'options' => [], 'statistics' => []];
+        $this->data = ['instances' => $empty, 'total' => $empty];
+        foreach ($this->instances as $name => $instance) {
+            $this->data['instances']['calls'][$name] = $instance->getCalls();
+            $this->data['instances']['adapters'][$name] = get_debug_type($instance->getPool());
+        }
+
+        $this->data['instances']['statistics'] = $this->calculateStatistics();
+        $this->data['total']['statistics'] = $this->calculateTotalStatistics();
+        $this->data['instances']['calls'] = $this->cloneVar($this->data['instances']['calls']);
+    }
+
+    public function getName(): string
+    {
+        return 'cache';
+    }
+
+    /**
+     * Method returns amount of logged Cache reads: "get" calls.
+     */
+    public function getStatistics(): array
+    {
+        return $this->data['instances']['statistics'];
+    }
+
+    /**
+     * Method returns the statistic totals.
+     */
+    public function getTotals(): array
+    {
+        return $this->data['total']['statistics'];
+    }
+
+    /**
+     * Method returns all logged Cache call objects.
+     */
+    public function getCalls(): mixed
+    {
+        return $this->data['instances']['calls'];
+    }
+
+    /**
+     * Method returns all logged Cache adapter classes.
+     */
+    public function getAdapters(): array
+    {
+        return $this->data['instances']['adapters'];
+    }
+
+    private function calculateStatistics(): array
+    {
+        $statistics = [];
+        foreach ($this->data['instances']['calls'] as $name => $calls) {
+            $statistics[$name] = [
+                'calls' => 0,
+                'time' => 0,
+                'reads' => 0,
+                'writes' => 0,
+                'deletes' => 0,
+                'hits' => 0,
+                'misses' => 0,
+            ];
+            /** @var TraceableAdapterEvent $call */
+            foreach ($calls as $call) {
+                ++$statistics[$name]['calls'];
+                $statistics[$name]['time'] += ($call->end ?? microtime(true)) - $call->start;
+                if ('get' === $call->name) {
+                    ++$statistics[$name]['reads'];
+                    if ($call->hits) {
+                        ++$statistics[$name]['hits'];
+                    } else {
+                        ++$statistics[$name]['misses'];
+                        ++$statistics[$name]['writes'];
+                    }
+                } elseif ('getItem' === $call->name) {
+                    ++$statistics[$name]['reads'];
+                    if ($call->hits) {
+                        ++$statistics[$name]['hits'];
+                    } else {
+                        ++$statistics[$name]['misses'];
+                    }
+                } elseif ('getItems' === $call->name) {
+                    $statistics[$name]['reads'] += $call->hits + $call->misses;
+                    $statistics[$name]['hits'] += $call->hits;
+                    $statistics[$name]['misses'] += $call->misses;
+                } elseif ('hasItem' === $call->name) {
+                    ++$statistics[$name]['reads'];
+                    foreach ($call->result ?? [] as $result) {
+                        ++$statistics[$name][$result ? 'hits' : 'misses'];
+                    }
+                } elseif ('save' === $call->name) {
+                    ++$statistics[$name]['writes'];
+                } elseif ('saveDeferred' === $call->name) {
+                    ++$statistics[$name]['writes'];
+                } elseif ('deleteItem' === $call->name) {
+                    ++$statistics[$name]['deletes'];
+                }
+            }
+            if ($statistics[$name]['reads']) {
+                $statistics[$name]['hit_read_ratio'] = round(100 * $statistics[$name]['hits'] / $statistics[$name]['reads'], 2);
+            } else {
+                $statistics[$name]['hit_read_ratio'] = null;
+            }
+        }
+
+        return $statistics;
+    }
+
+    private function calculateTotalStatistics(): array
+    {
+        $statistics = $this->getStatistics();
+        $totals = [
+            'calls' => 0,
+            'time' => 0,
+            'reads' => 0,
+            'writes' => 0,
+            'deletes' => 0,
+            'hits' => 0,
+            'misses' => 0,
+        ];
+        foreach ($statistics as $name => $values) {
+            foreach ($totals as $key => $value) {
+                $totals[$key] += $statistics[$name][$key];
+            }
+        }
+        if ($totals['reads']) {
+            $totals['hit_read_ratio'] = round(100 * $totals['hits'] / $totals['reads'], 2);
+        } else {
+            $totals['hit_read_ratio'] = null;
+        }
+
+        return $totals;
+    }
+}

backend/vendor/symfony/cache/DependencyInjection/CacheCollectorPass.php

@@ -0,0 +1,73 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\DependencyInjection;
+
+use Symfony\Component\Cache\Adapter\TagAwareAdapterInterface;
+use Symfony\Component\Cache\Adapter\TraceableAdapter;
+use Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Reference;
+
+/**
+ * Inject a data collector to all the cache services to be able to get detailed statistics.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class CacheCollectorPass implements CompilerPassInterface
+{
+    public function process(ContainerBuilder $container): void
+    {
+        if (!$container->hasDefinition('data_collector.cache')) {
+            return;
+        }
+
+        foreach ($container->findTaggedServiceIds('cache.pool') as $id => $attributes) {
+            $poolName = $attributes[0]['name'] ?? $id;
+
+            $this->addToCollector($id, $poolName, $container);
+        }
+    }
+
+    private function addToCollector(string $id, string $name, ContainerBuilder $container): void
+    {
+        $definition = $container->getDefinition($id);
+        if ($definition->isAbstract()) {
+            return;
+        }
+
+        $collectorDefinition = $container->getDefinition('data_collector.cache');
+        $recorder = new Definition(is_subclass_of($definition->getClass(), TagAwareAdapterInterface::class) ? TraceableTagAwareAdapter::class : TraceableAdapter::class);
+        $recorder->setTags($definition->getTags());
+        $recorder->setPublic($definition->isPublic());
+        $recorder->setArguments([new Reference($innerId = $id.'.recorder_inner'), new Reference('profiler.is_disabled_state_checker', ContainerBuilder::IGNORE_ON_INVALID_REFERENCE)]);
+
+        foreach ($definition->getMethodCalls() as [$method, $args]) {
+            if ('setCallbackWrapper' !== $method || !$args[0] instanceof Definition || !($args[0]->getArguments()[2] ?? null) instanceof Definition) {
+                continue;
+            }
+            if ([new Reference($id), 'setCallbackWrapper'] == $args[0]->getArguments()[2]->getFactory()) {
+                $args[0]->getArguments()[2]->setFactory([new Reference($innerId), 'setCallbackWrapper']);
+            }
+        }
+
+        $definition->setTags([]);
+        $definition->setPublic(false);
+
+        $container->setDefinition($innerId, $definition);
+        $container->setDefinition($id, $recorder);
+
+        // Tell the collector to add the new instance
+        $collectorDefinition->addMethodCall('addInstance', [$name, new Reference($id)]);
+    }
+}

backend/vendor/symfony/cache/DependencyInjection/CachePoolClearerPass.php

@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\DependencyInjection;
+
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Reference;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class CachePoolClearerPass implements CompilerPassInterface
+{
+    public function process(ContainerBuilder $container): void
+    {
+        $container->getParameterBag()->remove('cache.prefix.seed');
+
+        foreach ($container->findTaggedServiceIds('cache.pool.clearer') as $id => $attr) {
+            $clearer = $container->getDefinition($id);
+            $pools = [];
+            foreach ($clearer->getArgument(0) as $name => $ref) {
+                if ($container->hasDefinition($ref)) {
+                    $pools[$name] = new Reference($ref);
+                }
+            }
+            $clearer->replaceArgument(0, $pools);
+        }
+    }
+}

backend/vendor/symfony/cache/DependencyInjection/CachePoolPass.php

@@ -0,0 +1,252 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\DependencyInjection;
+
+use Symfony\Component\Cache\Adapter\AbstractAdapter;
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\Cache\Adapter\ChainAdapter;
+use Symfony\Component\Cache\Adapter\NullAdapter;
+use Symfony\Component\Cache\Adapter\ParameterNormalizer;
+use Symfony\Component\Cache\Adapter\TagAwareAdapter;
+use Symfony\Component\Cache\Messenger\EarlyExpirationDispatcher;
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\DependencyInjection\ChildDefinition;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Reference;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class CachePoolPass implements CompilerPassInterface
+{
+    public function process(ContainerBuilder $container): void
+    {
+        if ($container->hasParameter('cache.prefix.seed')) {
+            $seed = $container->getParameterBag()->resolveValue($container->getParameter('cache.prefix.seed'));
+        } else {
+            $seed = '_'.$container->getParameter('kernel.project_dir');
+            $seed .= '.'.$container->getParameter('kernel.container_class');
+        }
+
+        $needsMessageHandler = false;
+        $allPools = [];
+        $clearers = [];
+        $attributes = [
+            'provider',
+            'name',
+            'namespace',
+            'default_lifetime',
+            'early_expiration_message_bus',
+            'reset',
+            'pruneable',
+        ];
+        foreach ($container->findTaggedServiceIds('cache.pool') as $id => $tags) {
+            $adapter = $pool = $container->getDefinition($id);
+            if ($pool->isAbstract()) {
+                continue;
+            }
+            $class = $adapter->getClass();
+            $providers = $adapter->getArguments();
+            while ($adapter instanceof ChildDefinition) {
+                $adapter = $container->findDefinition($adapter->getParent());
+                $class = $class ?: $adapter->getClass();
+                $providers += $adapter->getArguments();
+                if ($t = $adapter->getTag('cache.pool')) {
+                    $tags[0] += $t[0];
+                }
+            }
+            $name = $tags[0]['name'] ?? $id;
+            if (!isset($tags[0]['namespace'])) {
+                $namespaceSeed = $seed;
+                if (null !== $class) {
+                    $namespaceSeed .= '.'.$class;
+                }
+
+                $tags[0]['namespace'] = $this->getNamespace($namespaceSeed, $name);
+            }
+            if (isset($tags[0]['clearer'])) {
+                $clearer = $tags[0]['clearer'];
+                while ($container->hasAlias($clearer)) {
+                    $clearer = (string) $container->getAlias($clearer);
+                }
+            } else {
+                $clearer = null;
+            }
+            unset($tags[0]['clearer'], $tags[0]['name']);
+
+            if (isset($tags[0]['provider'])) {
+                $tags[0]['provider'] = new Reference(static::getServiceProvider($container, $tags[0]['provider']));
+            }
+
+            $pruneable = $tags[0]['pruneable'] ?? $container->getReflectionClass($class, false)?->implementsInterface(PruneableInterface::class) ?? false;
+
+            if (ChainAdapter::class === $class) {
+                $adapters = [];
+                foreach ($providers['index_0'] ?? $providers[0] as $provider => $adapter) {
+                    if ($adapter instanceof ChildDefinition) {
+                        $chainedPool = clone $adapter;
+                    } else {
+                        $chainedPool = $adapter = new ChildDefinition($adapter);
+                    }
+
+                    $chainedTags = [\is_int($provider) ? [] : ['provider' => $provider]];
+                    $chainedClass = '';
+
+                    while ($adapter instanceof ChildDefinition) {
+                        $adapter = $container->findDefinition($adapter->getParent());
+                        $chainedClass = $chainedClass ?: $adapter->getClass();
+                        if ($t = $adapter->getTag('cache.pool')) {
+                            $chainedTags[0] += $t[0];
+                        }
+                    }
+
+                    if (ChainAdapter::class === $chainedClass) {
+                        throw new InvalidArgumentException(\sprintf('Invalid service "%s": chain of adapters cannot reference another chain, found "%s".', $id, $chainedPool->getParent()));
+                    }
+
+                    $i = 0;
+
+                    if (isset($chainedTags[0]['provider'])) {
+                        $chainedPool->replaceArgument($i++, new Reference(static::getServiceProvider($container, $chainedTags[0]['provider'])));
+                    }
+
+                    if (isset($tags[0]['namespace']) && !\in_array($adapter->getClass(), [ArrayAdapter::class, NullAdapter::class], true)) {
+                        $chainedPool->replaceArgument($i++, $tags[0]['namespace']);
+                    }
+
+                    if (isset($tags[0]['default_lifetime'])) {
+                        $chainedPool->replaceArgument($i++, $tags[0]['default_lifetime']);
+                    }
+
+                    $adapters[] = $chainedPool;
+                }
+
+                $pool->replaceArgument(0, $adapters);
+                unset($tags[0]['provider'], $tags[0]['namespace']);
+                $i = 1;
+            } else {
+                $i = 0;
+            }
+
+            foreach ($attributes as $attr) {
+                if (!isset($tags[0][$attr])) {
+                    // no-op
+                } elseif ('reset' === $attr) {
+                    if ($tags[0][$attr]) {
+                        $pool->addTag('kernel.reset', ['method' => $tags[0][$attr]]);
+                    }
+                } elseif ('early_expiration_message_bus' === $attr) {
+                    $needsMessageHandler = true;
+                    $pool->addMethodCall('setCallbackWrapper', [(new Definition(EarlyExpirationDispatcher::class))
+                        ->addArgument(new Reference($tags[0]['early_expiration_message_bus']))
+                        ->addArgument(new Reference('reverse_container'))
+                        ->addArgument((new Definition('callable'))
+                            ->setFactory([new Reference($id), 'setCallbackWrapper'])
+                            ->addArgument(null)
+                        ),
+                    ]);
+                    $pool->addTag('container.reversible');
+                } elseif ('pruneable' === $attr) {
+                    // no-op
+                } elseif ('namespace' !== $attr || !\in_array($class, [ArrayAdapter::class, NullAdapter::class, TagAwareAdapter::class], true)) {
+                    $argument = $tags[0][$attr];
+
+                    if ('default_lifetime' === $attr && !is_numeric($argument)) {
+                        $argument = (new Definition('int', [$argument]))
+                            ->setFactory([ParameterNormalizer::class, 'normalizeDuration']);
+                    }
+
+                    $pool->replaceArgument($i++, $argument);
+                }
+                unset($tags[0][$attr]);
+            }
+            if (!empty($tags[0])) {
+                throw new InvalidArgumentException(\sprintf('Invalid "cache.pool" tag for service "%s": accepted attributes are "clearer", "provider", "name", "namespace", "default_lifetime", "early_expiration_message_bus", "reset" and "pruneable", found "%s".', $id, implode('", "', array_keys($tags[0]))));
+            }
+
+            if (null !== $clearer) {
+                $clearers[$clearer][$name] = new Reference($id, $container::IGNORE_ON_UNINITIALIZED_REFERENCE);
+            }
+
+            $poolTags = $pool->getTags();
+            $poolTags['cache.pool'][0]['pruneable'] ??= $pruneable;
+            $pool->setTags($poolTags);
+
+            $allPools[$name] = new Reference($id, $container::IGNORE_ON_UNINITIALIZED_REFERENCE);
+        }
+
+        if (!$needsMessageHandler) {
+            $container->removeDefinition('cache.early_expiration_handler');
+        }
+
+        $notAliasedCacheClearerId = 'cache.global_clearer';
+        while ($container->hasAlias($notAliasedCacheClearerId)) {
+            $notAliasedCacheClearerId = (string) $container->getAlias($notAliasedCacheClearerId);
+        }
+        if ($container->hasDefinition($notAliasedCacheClearerId)) {
+            $clearers[$notAliasedCacheClearerId] = $allPools;
+        }
+
+        foreach ($clearers as $id => $pools) {
+            $clearer = $container->getDefinition($id);
+            if ($clearer instanceof ChildDefinition) {
+                $clearer->replaceArgument(0, $pools);
+            } else {
+                $clearer->setArgument(0, $pools);
+            }
+            $clearer->addTag('cache.pool.clearer');
+        }
+
+        $allPoolsKeys = array_keys($allPools);
+
+        if ($container->hasDefinition('console.command.cache_pool_list')) {
+            $container->getDefinition('console.command.cache_pool_list')->replaceArgument(0, $allPoolsKeys);
+        }
+
+        if ($container->hasDefinition('console.command.cache_pool_clear')) {
+            $container->getDefinition('console.command.cache_pool_clear')->addArgument($allPoolsKeys);
+        }
+
+        if ($container->hasDefinition('console.command.cache_pool_delete')) {
+            $container->getDefinition('console.command.cache_pool_delete')->addArgument($allPoolsKeys);
+        }
+    }
+
+    private function getNamespace(string $seed, string $id): string
+    {
+        return substr(str_replace('/', '-', base64_encode(hash('xxh128', $id.$seed, true))), 0, 10);
+    }
+
+    /**
+     * @internal
+     */
+    public static function getServiceProvider(ContainerBuilder $container, string $name): string
+    {
+        $container->resolveEnvPlaceholders($name, null, $usedEnvs);
+
+        if ($usedEnvs || preg_match('#^[a-z]++:#', $name)) {
+            $dsn = $name;
+
+            if (!$container->hasDefinition($name = '.cache_connection.'.ContainerBuilder::hash($dsn))) {
+                $definition = new Definition(AbstractAdapter::class);
+                $definition->setFactory([AbstractAdapter::class, 'createConnection']);
+                $definition->setArguments([$dsn, ['lazy' => true]]);
+                $container->setDefinition($name, $definition);
+            }
+        }
+
+        return $name;
+    }
+}

backend/vendor/symfony/cache/DependencyInjection/CachePoolPrunerPass.php

@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\DependencyInjection;
+
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Reference;
+
+/**
+ * @author Rob Frawley 2nd <rmf@src.run>
+ */
+class CachePoolPrunerPass implements CompilerPassInterface
+{
+    public function process(ContainerBuilder $container): void
+    {
+        if (!$container->hasDefinition('console.command.cache_pool_prune')) {
+            return;
+        }
+
+        $services = [];
+
+        foreach ($container->findTaggedServiceIds('cache.pool') as $id => $tags) {
+            if ($tags[0]['pruneable'] ?? $container->getReflectionClass($container->getDefinition($id)->getClass(), false)?->implementsInterface(PruneableInterface::class) ?? false) {
+                $services[$tags[0]['name'] ?? $id] = new Reference($id);
+            }
+        }
+
+        $container->getDefinition('console.command.cache_pool_prune')->replaceArgument(0, new IteratorArgument($services));
+    }
+}

backend/vendor/symfony/cache/Exception/BadMethodCallException.php

@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Exception;
+
+use Psr\Cache\CacheException as Psr6CacheInterface;
+use Psr\SimpleCache\CacheException as SimpleCacheInterface;
+
+if (interface_exists(SimpleCacheInterface::class)) {
+    class BadMethodCallException extends \BadMethodCallException implements Psr6CacheInterface, SimpleCacheInterface
+    {
+    }
+} else {
+    class BadMethodCallException extends \BadMethodCallException implements Psr6CacheInterface
+    {
+    }
+}

backend/vendor/symfony/cache/Exception/CacheException.php

@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Exception;
+
+use Psr\Cache\CacheException as Psr6CacheInterface;
+use Psr\SimpleCache\CacheException as SimpleCacheInterface;
+
+if (interface_exists(SimpleCacheInterface::class)) {
+    class CacheException extends \Exception implements Psr6CacheInterface, SimpleCacheInterface
+    {
+    }
+} else {
+    class CacheException extends \Exception implements Psr6CacheInterface
+    {
+    }
+}

backend/vendor/symfony/cache/Exception/InvalidArgumentException.php

@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Exception;
+
+use Psr\Cache\InvalidArgumentException as Psr6CacheInterface;
+use Psr\SimpleCache\InvalidArgumentException as SimpleCacheInterface;
+
+if (interface_exists(SimpleCacheInterface::class)) {
+    class InvalidArgumentException extends \InvalidArgumentException implements Psr6CacheInterface, SimpleCacheInterface
+    {
+    }
+} else {
+    class InvalidArgumentException extends \InvalidArgumentException implements Psr6CacheInterface
+    {
+    }
+}

backend/vendor/symfony/cache/Exception/LogicException.php

@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Exception;
+
+use Psr\Cache\CacheException as Psr6CacheInterface;
+use Psr\SimpleCache\CacheException as SimpleCacheInterface;
+
+if (interface_exists(SimpleCacheInterface::class)) {
+    class LogicException extends \LogicException implements Psr6CacheInterface, SimpleCacheInterface
+    {
+    }
+} else {
+    class LogicException extends \LogicException implements Psr6CacheInterface
+    {
+    }
+}

backend/vendor/symfony/cache/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2016-present Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

backend/vendor/symfony/cache/LockRegistry.php

@@ -0,0 +1,192 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache;
+
+use Psr\Log\LoggerInterface;
+use Symfony\Contracts\Cache\CacheInterface;
+use Symfony\Contracts\Cache\ItemInterface;
+
+/**
+ * LockRegistry is used internally by existing adapters to protect against cache stampede.
+ *
+ * It does so by wrapping the computation of items in a pool of locks.
+ * Foreach each apps, there can be at most 20 concurrent processes that
+ * compute items at the same time and only one per cache-key.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+final class LockRegistry
+{
+    private static array $openedFiles = [];
+    private static ?array $lockedFiles = null;
+    private static \Exception $signalingException;
+    private static \Closure $signalingCallback;
+
+    /**
+     * The number of items in this list controls the max number of concurrent processes.
+     */
+    private static array $files = [
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'AbstractAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'AbstractTagAwareAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'AdapterInterface.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'ApcuAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'ArrayAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'ChainAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'CouchbaseBucketAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'CouchbaseCollectionAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'DoctrineDbalAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'FilesystemAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'FilesystemTagAwareAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'MemcachedAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'NullAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'ParameterNormalizer.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'PdoAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'PhpArrayAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'PhpFilesAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'ProxyAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'Psr16Adapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'RedisAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'RedisTagAwareAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'TagAwareAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'TagAwareAdapterInterface.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'TraceableAdapter.php',
+        __DIR__.\DIRECTORY_SEPARATOR.'Adapter'.\DIRECTORY_SEPARATOR.'TraceableTagAwareAdapter.php',
+    ];
+
+    /**
+     * Defines a set of existing files that will be used as keys to acquire locks.
+     *
+     * @param list<string> $files A list of existing files
+     *
+     * @return list<string> The previously defined set of files
+     */
+    public static function setFiles(array $files): array
+    {
+        $previousFiles = self::$files;
+        self::$files = array_values($files);
+
+        foreach (self::$openedFiles as $file) {
+            if ($file) {
+                flock($file, \LOCK_UN);
+                fclose($file);
+            }
+        }
+        self::$openedFiles = self::$lockedFiles = [];
+
+        return $previousFiles;
+    }
+
+    public static function compute(callable $callback, ItemInterface $item, bool &$save, CacheInterface $pool, ?\Closure $setMetadata = null, ?LoggerInterface $logger = null, ?float $beta = null): mixed
+    {
+        if ('\\' === \DIRECTORY_SEPARATOR && null === self::$lockedFiles) {
+            // disable locking on Windows by default
+            self::$files = self::$lockedFiles = [];
+        }
+
+        $key = self::$files ? abs(crc32($item->getKey())) % \count(self::$files) : -1;
+
+        if ($key < 0 || self::$lockedFiles || !$lock = self::open($key)) {
+            return $callback($item, $save);
+        }
+
+        self::$signalingException ??= unserialize("O:9:\"Exception\":1:{s:16:\"\0Exception\0trace\";a:0:{}}");
+        self::$signalingCallback ??= static fn () => throw self::$signalingException;
+
+        while (true) {
+            try {
+                // race to get the lock in non-blocking mode
+                $locked = flock($lock, \LOCK_EX | \LOCK_NB, $wouldBlock);
+
+                if ($locked || !$wouldBlock) {
+                    $logger?->info(\sprintf('Lock %s, now computing item "{key}"', $locked ? 'acquired' : 'not supported'), ['key' => $item->getKey()]);
+                    self::$lockedFiles[$key] = true;
+
+                    $value = $callback($item, $save);
+
+                    if ($save) {
+                        if ($setMetadata) {
+                            $setMetadata($item);
+                        }
+
+                        $pool->save($item->set($value));
+                        $save = false;
+                    }
+
+                    return $value;
+                }
+                // if we failed the race, retry locking in blocking mode to wait for the winner
+                $logger?->info('Item "{key}" is locked, waiting for it to be released', ['key' => $item->getKey()]);
+
+                $deadline = microtime(true) + 30.0;
+                $acquired = false;
+                do {
+                    if ($acquired = flock($lock, \LOCK_SH | \LOCK_NB)) {
+                        break;
+                    }
+                    usleep(100_000);
+                } while (microtime(true) < $deadline);
+
+                if (!$acquired) {
+                    $logger?->warning('Lock on item "{key}" timed out, evicting slot', ['key' => $item->getKey()]);
+                    unset(self::$files[$key]);
+                    self::setFiles(self::$files);
+                    $lock = null;
+
+                    return self::compute($callback, $item, $save, $pool, $setMetadata, $logger, $beta);
+                }
+
+                if (\INF === $beta) {
+                    $logger?->info('Force-recomputing item "{key}"', ['key' => $item->getKey()]);
+                    continue;
+                }
+            } finally {
+                if ($lock) {
+                    flock($lock, \LOCK_UN);
+                }
+                unset(self::$lockedFiles[$key]);
+            }
+
+            try {
+                $value = $pool->get($item->getKey(), self::$signalingCallback, 0);
+                $logger?->info('Item "{key}" retrieved after lock was released', ['key' => $item->getKey()]);
+                $save = false;
+
+                return $value;
+            } catch (\Exception $e) {
+                if (self::$signalingException !== $e) {
+                    throw $e;
+                }
+                $logger?->info('Item "{key}" not found while lock was released, now retrying', ['key' => $item->getKey()]);
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * @return resource|false
+     */
+    private static function open(int $key)
+    {
+        if (null !== $h = self::$openedFiles[$key] ?? null) {
+            return $h;
+        }
+        set_error_handler(static fn () => null);
+        try {
+            $h = fopen(self::$files[$key], 'r+');
+        } finally {
+            restore_error_handler();
+        }
+
+        return self::$openedFiles[$key] = $h ?: @fopen(self::$files[$key], 'r');
+    }
+}

backend/vendor/symfony/cache/Marshaller/DefaultMarshaller.php

@@ -0,0 +1,96 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Marshaller;
+
+use Symfony\Component\Cache\Exception\CacheException;
+
+/**
+ * Serializes/unserializes values using igbinary_serialize() if available, serialize() otherwise.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class DefaultMarshaller implements MarshallerInterface
+{
+    private bool $useIgbinarySerialize = false;
+    private bool $throwOnSerializationFailure = false;
+
+    public function __construct(?bool $useIgbinarySerialize = null, bool $throwOnSerializationFailure = false)
+    {
+        if ($useIgbinarySerialize && (!\extension_loaded('igbinary') || version_compare('3.1.6', phpversion('igbinary'), '>'))) {
+            throw new CacheException(\extension_loaded('igbinary') ? 'Please upgrade the "igbinary" PHP extension to v3.1.6 or higher.' : 'The "igbinary" PHP extension is not loaded.');
+        }
+        $this->useIgbinarySerialize = true === $useIgbinarySerialize;
+        $this->throwOnSerializationFailure = $throwOnSerializationFailure;
+    }
+
+    public function marshall(array $values, ?array &$failed): array
+    {
+        $serialized = $failed = [];
+
+        foreach ($values as $id => $value) {
+            try {
+                if ($this->useIgbinarySerialize) {
+                    $serialized[$id] = igbinary_serialize($value);
+                } else {
+                    $serialized[$id] = serialize($value);
+                }
+            } catch (\Exception $e) {
+                if ($this->throwOnSerializationFailure) {
+                    throw new \ValueError($e->getMessage(), 0, $e);
+                }
+                $failed[] = $id;
+            }
+        }
+
+        return $serialized;
+    }
+
+    public function unmarshall(string $value): mixed
+    {
+        if ('b:0;' === $value) {
+            return false;
+        }
+        if ('N;' === $value) {
+            return null;
+        }
+        static $igbinaryNull;
+        if ($value === $igbinaryNull ??= \extension_loaded('igbinary') ? igbinary_serialize(null) : false) {
+            return null;
+        }
+        $unserializeCallbackHandler = ini_set('unserialize_callback_func', __CLASS__.'::handleUnserializeCallback');
+        try {
+            if (':' === ($value[1] ?? ':')) {
+                if (false !== $value = unserialize($value)) {
+                    return $value;
+                }
+            } elseif (false === $igbinaryNull) {
+                throw new \RuntimeException('Failed to unserialize values, did you forget to install the "igbinary" extension?');
+            } elseif (null !== $value = igbinary_unserialize($value)) {
+                return $value;
+            }
+
+            throw new \DomainException(error_get_last() ? error_get_last()['message'] : 'Failed to unserialize values.');
+        } catch (\Error $e) {
+            throw new \ErrorException($e->getMessage(), $e->getCode(), \E_ERROR, $e->getFile(), $e->getLine());
+        } finally {
+            ini_set('unserialize_callback_func', $unserializeCallbackHandler);
+        }
+    }
+
+    /**
+     * @internal
+     */
+    public static function handleUnserializeCallback(string $class): never
+    {
+        throw new \DomainException('Class not found: '.$class);
+    }
+}

backend/vendor/symfony/cache/Marshaller/DeflateMarshaller.php

@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Marshaller;
+
+use Symfony\Component\Cache\Exception\CacheException;
+
+/**
+ * Compresses values using gzdeflate().
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class DeflateMarshaller implements MarshallerInterface
+{
+    public function __construct(
+        private MarshallerInterface $marshaller,
+    ) {
+        if (!\function_exists('gzdeflate')) {
+            throw new CacheException('The "zlib" PHP extension is not loaded.');
+        }
+    }
+
+    public function marshall(array $values, ?array &$failed): array
+    {
+        return array_map('gzdeflate', $this->marshaller->marshall($values, $failed));
+    }
+
+    public function unmarshall(string $value): mixed
+    {
+        if (false !== $inflatedValue = @gzinflate($value)) {
+            $value = $inflatedValue;
+        }
+
+        return $this->marshaller->unmarshall($value);
+    }
+}

backend/vendor/symfony/cache/Marshaller/MarshallerInterface.php

@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Marshaller;
+
+/**
+ * Serializes/unserializes PHP values.
+ *
+ * Implementations of this interface MUST deal with errors carefully. They MUST
+ * also deal with forward and backward compatibility at the storage format level.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+interface MarshallerInterface
+{
+    /**
+     * Serializes a list of values.
+     *
+     * When serialization fails for a specific value, no exception should be
+     * thrown. Instead, its key should be listed in $failed.
+     */
+    public function marshall(array $values, ?array &$failed): array;
+
+    /**
+     * Unserializes a single value and throws an exception if anything goes wrong.
+     *
+     * @throws \Exception Whenever unserialization fails
+     */
+    public function unmarshall(string $value): mixed;
+}

backend/vendor/symfony/cache/Marshaller/SodiumMarshaller.php

@@ -0,0 +1,74 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Marshaller;
+
+use Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+
+/**
+ * Encrypt/decrypt values using Libsodium.
+ *
+ * @author Ahmed TAILOULOUTE <ahmed.tailouloute@gmail.com>
+ */
+class SodiumMarshaller implements MarshallerInterface
+{
+    private MarshallerInterface $marshaller;
+
+    /**
+     * @param string[] $decryptionKeys The key at index "0" is required and is used to decrypt and encrypt values;
+     *                                 more rotating keys can be provided to decrypt values;
+     *                                 each key must be generated using sodium_crypto_box_keypair()
+     */
+    public function __construct(
+        private array $decryptionKeys,
+        ?MarshallerInterface $marshaller = null,
+    ) {
+        if (!self::isSupported()) {
+            throw new CacheException('The "sodium" PHP extension is not loaded.');
+        }
+
+        if (!isset($decryptionKeys[0])) {
+            throw new InvalidArgumentException('At least one decryption key must be provided at index "0".');
+        }
+
+        $this->marshaller = $marshaller ?? new DefaultMarshaller();
+    }
+
+    public static function isSupported(): bool
+    {
+        return \function_exists('sodium_crypto_box_seal');
+    }
+
+    public function marshall(array $values, ?array &$failed): array
+    {
+        $encryptionKey = sodium_crypto_box_publickey($this->decryptionKeys[0]);
+
+        $encryptedValues = [];
+        foreach ($this->marshaller->marshall($values, $failed) as $k => $v) {
+            $encryptedValues[$k] = sodium_crypto_box_seal($v, $encryptionKey);
+        }
+
+        return $encryptedValues;
+    }
+
+    public function unmarshall(string $value): mixed
+    {
+        foreach ($this->decryptionKeys as $k) {
+            if (false !== $decryptedValue = @sodium_crypto_box_seal_open($value, $k)) {
+                $value = $decryptedValue;
+                break;
+            }
+        }
+
+        return $this->marshaller->unmarshall($value);
+    }
+}

backend/vendor/symfony/cache/Marshaller/TagAwareMarshaller.php

@@ -0,0 +1,83 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Marshaller;
+
+/**
+ * A marshaller optimized for data structures generated by AbstractTagAwareAdapter.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class TagAwareMarshaller implements MarshallerInterface
+{
+    private MarshallerInterface $marshaller;
+
+    public function __construct(?MarshallerInterface $marshaller = null)
+    {
+        $this->marshaller = $marshaller ?? new DefaultMarshaller();
+    }
+
+    public function marshall(array $values, ?array &$failed): array
+    {
+        $failed = $notSerialized = $serialized = [];
+
+        foreach ($values as $id => $value) {
+            if (\is_array($value) && \is_array($value['tags'] ?? null) && \array_key_exists('value', $value) && \count($value) === 2 + (\is_string($value['meta'] ?? null) && 8 === \strlen($value['meta']))) {
+                // if the value is an array with keys "tags", "value" and "meta", use a compact serialization format
+                // magic numbers in the form 9D-..-..-..-..-00-..-..-..-5F allow detecting this format quickly in unmarshall()
+
+                $v = $this->marshaller->marshall($value, $f);
+
+                if ($f) {
+                    $f = [];
+                    $failed[] = $id;
+                } else {
+                    if ([] === $value['tags']) {
+                        $v['tags'] = '';
+                    }
+
+                    $serialized[$id] = "\x9D".($value['meta'] ?? "\0\0\0\0\0\0\0\0").pack('N', \strlen($v['tags'])).$v['tags'].$v['value'];
+                    $serialized[$id][9] = "\x5F";
+                }
+            } else {
+                // other arbitrary values are serialized using the decorated marshaller below
+                $notSerialized[$id] = $value;
+            }
+        }
+
+        if ($notSerialized) {
+            $serialized += $this->marshaller->marshall($notSerialized, $f);
+            $failed = array_merge($failed, $f);
+        }
+
+        return $serialized;
+    }
+
+    public function unmarshall(string $value): mixed
+    {
+        // detect the compact format used in marshall() using magic numbers in the form 9D-..-..-..-..-00-..-..-..-5F
+        if (13 >= \strlen($value) || "\x9D" !== $value[0] || "\0" !== $value[5] || "\x5F" !== $value[9]) {
+            return $this->marshaller->unmarshall($value);
+        }
+
+        // data consists of value, tags and metadata which we need to unpack
+        $meta = substr($value, 1, 12);
+        $meta[8] = "\0";
+        $tagLen = unpack('Nlen', $meta, 8)['len'];
+        $meta = substr($meta, 0, 8);
+
+        return [
+            'value' => $this->marshaller->unmarshall(substr($value, 13 + $tagLen)),
+            'tags' => $tagLen ? $this->marshaller->unmarshall(substr($value, 13, $tagLen)) : [],
+            'meta' => "\0\0\0\0\0\0\0\0" === $meta ? null : $meta,
+        ];
+    }
+}

backend/vendor/symfony/cache/Messenger/EarlyExpirationDispatcher.php

@@ -0,0 +1,60 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Messenger;
+
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Cache\Adapter\AdapterInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\DependencyInjection\ReverseContainer;
+use Symfony\Component\Messenger\MessageBusInterface;
+use Symfony\Component\Messenger\Stamp\HandledStamp;
+
+/**
+ * Sends the computation of cached values to a message bus.
+ */
+class EarlyExpirationDispatcher
+{
+    private ?\Closure $callbackWrapper;
+
+    public function __construct(
+        private MessageBusInterface $bus,
+        private ReverseContainer $reverseContainer,
+        ?callable $callbackWrapper = null,
+    ) {
+        $this->callbackWrapper = null === $callbackWrapper ? null : $callbackWrapper(...);
+    }
+
+    public function __invoke(callable $callback, CacheItem $item, bool &$save, AdapterInterface $pool, \Closure $setMetadata, ?LoggerInterface $logger = null, ?float $beta = null): mixed
+    {
+        if (!$item->isHit() || null === $message = EarlyExpirationMessage::create($this->reverseContainer, $callback, $item, $pool)) {
+            // The item is stale or the callback cannot be reversed: we must compute the value now
+            $logger?->info('Computing item "{key}" online: '.($item->isHit() ? 'callback cannot be reversed' : 'item is stale'), ['key' => $item->getKey()]);
+
+            return null !== $this->callbackWrapper ? ($this->callbackWrapper)($callback, $item, $save, $pool, $setMetadata, $logger, $beta) : $callback($item, $save);
+        }
+
+        $envelope = $this->bus->dispatch($message);
+
+        if ($logger) {
+            if ($envelope->last(HandledStamp::class)) {
+                $logger->info('Item "{key}" was computed online', ['key' => $item->getKey()]);
+            } else {
+                $logger->info('Item "{key}" sent for recomputation', ['key' => $item->getKey()]);
+            }
+        }
+
+        // The item's value is not stale, no need to write it to the backend
+        $save = false;
+
+        return $message->getItem()->get() ?? $item->get();
+    }
+}

backend/vendor/symfony/cache/Messenger/EarlyExpirationHandler.php

@@ -0,0 +1,81 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Messenger;
+
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\DependencyInjection\ReverseContainer;
+use Symfony\Component\Messenger\Attribute\AsMessageHandler;
+
+/**
+ * Computes cached values sent to a message bus.
+ */
+#[AsMessageHandler]
+class EarlyExpirationHandler
+{
+    private array $processedNonces = [];
+
+    public function __construct(
+        private ReverseContainer $reverseContainer,
+    ) {
+    }
+
+    public function __invoke(EarlyExpirationMessage $message): void
+    {
+        $item = $message->getItem();
+        $metadata = $item->getMetadata();
+        $expiry = $metadata[CacheItem::METADATA_EXPIRY] ?? 0;
+        $ctime = $metadata[CacheItem::METADATA_CTIME] ?? 0;
+
+        if ($expiry && $ctime) {
+            // skip duplicate or expired messages
+
+            $processingNonce = [$expiry, $ctime];
+            $pool = $message->getPool();
+            $key = $item->getKey();
+
+            if (($this->processedNonces[$pool][$key] ?? null) === $processingNonce) {
+                return;
+            }
+
+            if (microtime(true) >= $expiry) {
+                return;
+            }
+
+            $this->processedNonces[$pool] = [$key => $processingNonce] + ($this->processedNonces[$pool] ?? []);
+
+            if (\count($this->processedNonces[$pool]) > 100) {
+                array_pop($this->processedNonces[$pool]);
+            }
+        }
+
+        static $setMetadata;
+
+        $setMetadata ??= \Closure::bind(
+            function (CacheItem $item, float $startTime) {
+                if ($item->expiry > $endTime = microtime(true)) {
+                    $item->newMetadata[CacheItem::METADATA_EXPIRY] = $item->expiry;
+                    $item->newMetadata[CacheItem::METADATA_CTIME] = (int) ceil(1000 * ($endTime - $startTime));
+                }
+            },
+            null,
+            CacheItem::class
+        );
+
+        $startTime = microtime(true);
+        $pool = $message->findPool($this->reverseContainer);
+        $callback = $message->findCallback($this->reverseContainer);
+        $save = true;
+        $value = $callback($item, $save);
+        $setMetadata($item, $startTime);
+        $pool->save($item->set($value));
+    }
+}

backend/vendor/symfony/cache/Messenger/EarlyExpirationMessage.php

@@ -0,0 +1,101 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Messenger;
+
+use Symfony\Component\Cache\Adapter\AdapterInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\DependencyInjection\ReverseContainer;
+
+/**
+ * Conveys a cached value that needs to be computed.
+ */
+final class EarlyExpirationMessage
+{
+    public static function create(ReverseContainer $reverseContainer, callable $callback, CacheItem $item, AdapterInterface $pool): ?self
+    {
+        try {
+            $item = clone $item;
+            $item->set(null);
+        } catch (\Exception) {
+            return null;
+        }
+
+        $pool = $reverseContainer->getId($pool);
+
+        if ($callback instanceof \Closure && !($r = new \ReflectionFunction($callback))->isAnonymous()) {
+            $callback = [$r->getClosureThis() ?? $r->getClosureCalledClass()?->name, $r->name];
+            $callback[0] ?: $callback = $r->name;
+        }
+
+        if (\is_object($callback)) {
+            if (null === $id = $reverseContainer->getId($callback)) {
+                return null;
+            }
+
+            $callback = '@'.$id;
+        } elseif (!\is_array($callback)) {
+            $callback = (string) $callback;
+        } elseif (!\is_object($callback[0])) {
+            $callback = [(string) $callback[0], (string) $callback[1]];
+        } else {
+            if (null === $id = $reverseContainer->getId($callback[0])) {
+                return null;
+            }
+
+            $callback = ['@'.$id, (string) $callback[1]];
+        }
+
+        return new self($item, $pool, $callback);
+    }
+
+    public function getItem(): CacheItem
+    {
+        return $this->item;
+    }
+
+    public function getPool(): string
+    {
+        return $this->pool;
+    }
+
+    /**
+     * @return string|string[]
+     */
+    public function getCallback(): string|array
+    {
+        return $this->callback;
+    }
+
+    public function findPool(ReverseContainer $reverseContainer): AdapterInterface
+    {
+        return $reverseContainer->getService($this->pool);
+    }
+
+    public function findCallback(ReverseContainer $reverseContainer): callable
+    {
+        if (\is_string($callback = $this->callback)) {
+            return '@' === $callback[0] ? $reverseContainer->getService(substr($callback, 1)) : $callback;
+        }
+        if ('@' === $callback[0][0]) {
+            $callback[0] = $reverseContainer->getService(substr($callback[0], 1));
+        }
+
+        return $callback;
+    }
+
+    private function __construct(
+        private CacheItem $item,
+        private string $pool,
+        private string|array $callback,
+    ) {
+    }
+}

backend/vendor/symfony/cache/PruneableInterface.php

@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache;
+
+/**
+ * Interface extends psr-6 and psr-16 caches to allow for pruning (deletion) of all expired cache items.
+ */
+interface PruneableInterface
+{
+    public function prune(): bool;
+}

backend/vendor/symfony/cache/Psr16Cache.php

@@ -0,0 +1,240 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache;
+
+use Psr\Cache\CacheException as Psr6CacheException;
+use Psr\Cache\CacheItemPoolInterface;
+use Psr\SimpleCache\CacheException as SimpleCacheException;
+use Psr\SimpleCache\CacheInterface;
+use Symfony\Component\Cache\Adapter\AdapterInterface;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\Traits\ProxyTrait;
+
+/**
+ * Turns a PSR-6 cache into a PSR-16 one.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class Psr16Cache implements CacheInterface, PruneableInterface, ResettableInterface
+{
+    use ProxyTrait;
+
+    private ?\Closure $createCacheItem = null;
+    private ?CacheItem $cacheItemPrototype = null;
+    private static \Closure $packCacheItem;
+
+    public function __construct(CacheItemPoolInterface $pool)
+    {
+        $this->pool = $pool;
+
+        if (!$pool instanceof AdapterInterface) {
+            return;
+        }
+        $cacheItemPrototype = &$this->cacheItemPrototype;
+        $createCacheItem = \Closure::bind(
+            static function ($key, $value, $allowInt = false) use (&$cacheItemPrototype) {
+                $item = clone $cacheItemPrototype;
+                $item->poolHash = $item->innerItem = null;
+                if ($allowInt && \is_int($key)) {
+                    $item->key = (string) $key;
+                } else {
+                    \assert('' !== CacheItem::validateKey($key));
+                    $item->key = $key;
+                }
+                $item->value = $value;
+                $item->isHit = false;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+        $this->createCacheItem = function ($key, $value, $allowInt = false) use ($createCacheItem) {
+            if (null === $this->cacheItemPrototype) {
+                $this->get($allowInt && \is_int($key) ? (string) $key : $key);
+            }
+            $this->createCacheItem = $createCacheItem;
+
+            return $createCacheItem($key, null, $allowInt)->set($value);
+        };
+        self::$packCacheItem ??= \Closure::bind(
+            static function (CacheItem $item) {
+                $item->newMetadata = $item->metadata;
+
+                return $item->pack();
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    public function get($key, $default = null): mixed
+    {
+        try {
+            $item = $this->pool->getItem($key);
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+        if (null === $this->cacheItemPrototype) {
+            $this->cacheItemPrototype = clone $item;
+            $this->cacheItemPrototype->set(null);
+        }
+
+        return $item->isHit() ? $item->get() : $default;
+    }
+
+    public function set($key, $value, $ttl = null): bool
+    {
+        try {
+            if (null !== $f = $this->createCacheItem) {
+                $item = $f($key, $value);
+            } else {
+                $item = $this->pool->getItem($key)->set($value);
+            }
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+        if (null !== $ttl) {
+            $item->expiresAfter($ttl);
+        }
+
+        return $this->pool->save($item);
+    }
+
+    public function delete($key): bool
+    {
+        try {
+            return $this->pool->deleteItem($key);
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+
+    public function clear(): bool
+    {
+        return $this->pool->clear();
+    }
+
+    public function getMultiple($keys, $default = null): iterable
+    {
+        if ($keys instanceof \Traversable) {
+            $keys = iterator_to_array($keys, false);
+        } elseif (!\is_array($keys)) {
+            throw new InvalidArgumentException(\sprintf('Cache keys must be array or Traversable, "%s" given.', get_debug_type($keys)));
+        }
+
+        try {
+            $items = $this->pool->getItems($keys);
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+        $values = [];
+
+        if (!$this->pool instanceof AdapterInterface) {
+            foreach ($items as $key => $item) {
+                $values[$key] = $item->isHit() ? $item->get() : $default;
+            }
+
+            return $values;
+        }
+
+        foreach ($items as $key => $item) {
+            $values[$key] = $item->isHit() ? (self::$packCacheItem)($item) : $default;
+        }
+
+        return $values;
+    }
+
+    public function setMultiple($values, $ttl = null): bool
+    {
+        $valuesIsArray = \is_array($values);
+        if (!$valuesIsArray && !$values instanceof \Traversable) {
+            throw new InvalidArgumentException(\sprintf('Cache values must be array or Traversable, "%s" given.', get_debug_type($values)));
+        }
+        $items = [];
+
+        try {
+            if (null !== $f = $this->createCacheItem) {
+                $valuesIsArray = false;
+                foreach ($values as $key => $value) {
+                    $items[$key] = $f($key, $value, true);
+                }
+            } elseif ($valuesIsArray) {
+                $items = [];
+                foreach ($values as $key => $value) {
+                    $items[] = (string) $key;
+                }
+                $items = $this->pool->getItems($items);
+            } else {
+                foreach ($values as $key => $value) {
+                    if (\is_int($key)) {
+                        $key = (string) $key;
+                    }
+                    $items[$key] = $this->pool->getItem($key)->set($value);
+                }
+            }
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+        $ok = true;
+
+        foreach ($items as $key => $item) {
+            if ($valuesIsArray) {
+                $item->set($values[$key]);
+            }
+            if (null !== $ttl) {
+                $item->expiresAfter($ttl);
+            }
+            $ok = $this->pool->saveDeferred($item) && $ok;
+        }
+
+        return $this->pool->commit() && $ok;
+    }
+
+    public function deleteMultiple($keys): bool
+    {
+        if ($keys instanceof \Traversable) {
+            $keys = iterator_to_array($keys, false);
+        } elseif (!\is_array($keys)) {
+            throw new InvalidArgumentException(\sprintf('Cache keys must be array or Traversable, "%s" given.', get_debug_type($keys)));
+        }
+
+        try {
+            return $this->pool->deleteItems($keys);
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+
+    public function has($key): bool
+    {
+        try {
+            return $this->pool->hasItem($key);
+        } catch (SimpleCacheException $e) {
+            throw $e;
+        } catch (Psr6CacheException $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+}

backend/vendor/symfony/cache/README.md

@@ -0,0 +1,19 @@
+Symfony PSR-6 implementation for caching
+========================================
+
+The Cache component provides extended
+[PSR-6](https://www.php-fig.org/psr/psr-6/) implementations for adding cache to
+your applications. It is designed to have a low overhead so that caching is
+fastest. It ships with adapters for the most widespread caching backends.
+It also provides a [PSR-16](https://www.php-fig.org/psr/psr-16/) adapter,
+and implementations for [symfony/cache-contracts](https://github.com/symfony/cache-contracts)'
+`CacheInterface` and `TagAwareCacheInterface`.
+
+Resources
+---------
+
+ * [Documentation](https://symfony.com/doc/current/components/cache.html)
+ * [Contributing](https://symfony.com/doc/current/contributing/index.html)
+ * [Report issues](https://github.com/symfony/symfony/issues) and
+   [send Pull Requests](https://github.com/symfony/symfony/pulls)
+   in the [main Symfony repository](https://github.com/symfony/symfony)

backend/vendor/symfony/cache/ResettableInterface.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache;
+
+use Symfony\Contracts\Service\ResetInterface;
+
+/**
+ * Resets a pool's local state.
+ */
+interface ResettableInterface extends ResetInterface
+{
+}

backend/vendor/symfony/cache/Traits/AbstractAdapterTrait.php

@@ -0,0 +1,403 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Log\LoggerAwareTrait;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait AbstractAdapterTrait
+{
+    use LoggerAwareTrait;
+
+    /**
+     * needs to be set by class, signature is function(string <key>, mixed <value>, bool <isHit>).
+     */
+    private static \Closure $createCacheItem;
+
+    /**
+     * needs to be set by class, signature is function(array <deferred>, string <namespace>, array <&expiredIds>).
+     */
+    private static \Closure $mergeByLifetime;
+
+    private readonly string $rootNamespace;
+    private string $namespace = '';
+    private int $defaultLifetime;
+    private string $namespaceVersion = '';
+    private bool $versioningIsEnabled = false;
+    private array $deferred = [];
+    private array $ids = [];
+
+    /**
+     * The maximum length to enforce for identifiers or null when no limit applies.
+     */
+    protected ?int $maxIdLength = null;
+
+    /**
+     * Fetches several cache items.
+     *
+     * @param array $ids The cache identifiers to fetch
+     */
+    abstract protected function doFetch(array $ids): iterable;
+
+    /**
+     * Confirms if the cache contains specified cache item.
+     *
+     * @param string $id The identifier for which to check existence
+     */
+    abstract protected function doHave(string $id): bool;
+
+    /**
+     * Deletes all items in the pool.
+     *
+     * @param string $namespace The prefix used for all identifiers managed by this pool
+     */
+    abstract protected function doClear(string $namespace): bool;
+
+    /**
+     * Removes multiple items from the pool.
+     *
+     * @param array $ids An array of identifiers that should be removed from the pool
+     */
+    abstract protected function doDelete(array $ids): bool;
+
+    /**
+     * Persists several cache items immediately.
+     *
+     * @param array $values   The values to cache, indexed by their cache identifier
+     * @param int   $lifetime The lifetime of the cached values, 0 for persisting until manual cleaning
+     *
+     * @return array|bool The identifiers that failed to be cached or a boolean stating if caching succeeded or not
+     */
+    abstract protected function doSave(array $values, int $lifetime): array|bool;
+
+    public function hasItem(mixed $key): bool
+    {
+        $id = $this->getId($key);
+
+        if (isset($this->deferred[$key])) {
+            $this->commit();
+        }
+
+        try {
+            return $this->doHave($id);
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to check if key "{key}" is cached: '.$e->getMessage(), ['key' => $key, 'exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+
+            return false;
+        }
+    }
+
+    public function clear(string $prefix = ''): bool
+    {
+        $this->deferred = [];
+        if ($cleared = $this->versioningIsEnabled) {
+            $rootNamespace = $this->rootNamespace ??= $this->namespace;
+            if ('' === $namespaceVersionToClear = $this->namespaceVersion) {
+                foreach ($this->doFetch([static::NS_SEPARATOR.$rootNamespace]) as $v) {
+                    $namespaceVersionToClear = $v;
+                }
+            }
+            $namespaceToClear = $rootNamespace.$namespaceVersionToClear;
+            $namespaceVersion = self::formatNamespaceVersion(mt_rand());
+            try {
+                $e = $this->doSave([static::NS_SEPARATOR.$rootNamespace => $namespaceVersion], 0);
+            } catch (\Exception $e) {
+            }
+            if (true !== $e && [] !== $e) {
+                $cleared = false;
+                $message = 'Failed to save the new namespace'.($e instanceof \Exception ? ': '.$e->getMessage() : '.');
+                CacheItem::log($this->logger, $message, ['exception' => $e instanceof \Exception ? $e : null, 'cache-adapter' => get_debug_type($this)]);
+            } else {
+                $this->namespaceVersion = $namespaceVersion;
+                $this->ids = [];
+            }
+        } else {
+            $namespaceToClear = $this->namespace.$prefix;
+        }
+
+        try {
+            return $this->doClear($namespaceToClear) || $cleared;
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to clear the cache: '.$e->getMessage(), ['exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+
+            return false;
+        }
+    }
+
+    public function deleteItem(mixed $key): bool
+    {
+        return $this->deleteItems([$key]);
+    }
+
+    public function deleteItems(array $keys): bool
+    {
+        $ids = [];
+
+        foreach ($keys as $key) {
+            $ids[$key] = $this->getId($key);
+            unset($this->deferred[$key]);
+        }
+
+        try {
+            if ($this->doDelete($ids)) {
+                return true;
+            }
+        } catch (\Exception) {
+        }
+
+        $ok = true;
+
+        // When bulk-delete failed, retry each item individually
+        foreach ($ids as $key => $id) {
+            try {
+                $e = null;
+                if ($this->doDelete([$id])) {
+                    continue;
+                }
+            } catch (\Exception $e) {
+            }
+            $message = 'Failed to delete key "{key}"'.($e instanceof \Exception ? ': '.$e->getMessage() : '.');
+            CacheItem::log($this->logger, $message, ['key' => $key, 'exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+            $ok = false;
+        }
+
+        return $ok;
+    }
+
+    public function getItem(mixed $key): CacheItem
+    {
+        $id = $this->getId($key);
+
+        if (isset($this->deferred[$key])) {
+            $this->commit();
+        }
+
+        $isHit = false;
+        $value = null;
+
+        try {
+            foreach ($this->doFetch([$id]) as $value) {
+                $isHit = true;
+            }
+
+            return (self::$createCacheItem)($key, $value, $isHit);
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch key "{key}": '.$e->getMessage(), ['key' => $key, 'exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+        }
+
+        return (self::$createCacheItem)($key, null, false);
+    }
+
+    public function getItems(array $keys = []): iterable
+    {
+        $ids = [];
+        $commit = false;
+
+        foreach ($keys as $key) {
+            $ids[] = $this->getId($key);
+            $commit = $commit || isset($this->deferred[$key]);
+        }
+
+        if ($commit) {
+            $this->commit();
+        }
+
+        try {
+            $items = $this->doFetch($ids);
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch items: '.$e->getMessage(), ['keys' => $keys, 'exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+            $items = [];
+        }
+        $ids = array_combine($ids, $keys);
+
+        return $this->generateItems($items, $ids);
+    }
+
+    public function save(CacheItemInterface $item): bool
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return $this->commit();
+    }
+
+    public function saveDeferred(CacheItemInterface $item): bool
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return true;
+    }
+
+    public function withSubNamespace(string $namespace): static
+    {
+        $this->rootNamespace ??= $this->namespace;
+
+        $clone = clone $this;
+        $clone->namespace .= CacheItem::validateKey($namespace).static::NS_SEPARATOR;
+
+        return $clone;
+    }
+
+    /**
+     * Enables/disables versioning of items.
+     *
+     * When versioning is enabled, clearing the cache is atomic and doesn't require listing existing keys to proceed,
+     * but old keys may need garbage collection and extra round-trips to the back-end are required.
+     *
+     * Calling this method also clears the memoized namespace version and thus forces a resynchronization of it.
+     *
+     * @return bool the previous state of versioning
+     */
+    public function enableVersioning(bool $enable = true): bool
+    {
+        $wasEnabled = $this->versioningIsEnabled;
+        $this->versioningIsEnabled = $enable;
+        $this->namespaceVersion = '';
+        $this->ids = [];
+
+        return $wasEnabled;
+    }
+
+    public function reset(): void
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        $this->namespaceVersion = '';
+        $this->ids = [];
+    }
+
+    public function __serialize(): array
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    public function __unserialize(array $data): void
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
+    public function __destruct()
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+    }
+
+    private function generateItems(iterable $items, array &$keys): \Generator
+    {
+        $f = self::$createCacheItem;
+
+        try {
+            foreach ($items as $id => $value) {
+                if (!isset($keys[$id])) {
+                    throw new InvalidArgumentException(\sprintf('Could not match value id "%s" to keys "%s".', $id, implode('", "', $keys)));
+                }
+                $key = $keys[$id];
+                unset($keys[$id]);
+                yield $key => $f($key, $value, true);
+            }
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch items: '.$e->getMessage(), ['keys' => array_values($keys), 'exception' => $e, 'cache-adapter' => get_debug_type($this)]);
+        }
+
+        foreach ($keys as $key) {
+            yield $key => $f($key, null, false);
+        }
+    }
+
+    /**
+     * @internal
+     */
+    protected function getId(mixed $key, ?string $namespace = null): string
+    {
+        $namespace ??= $this->namespace;
+
+        if ('' !== $this->namespaceVersion) {
+            $namespace .= $this->namespaceVersion;
+        } elseif ($this->versioningIsEnabled) {
+            $rootNamespace = $this->rootNamespace ??= $this->namespace;
+            $this->ids = [];
+            $this->namespaceVersion = '1'.static::NS_SEPARATOR;
+            try {
+                foreach ($this->doFetch([static::NS_SEPARATOR.$rootNamespace]) as $v) {
+                    $this->namespaceVersion = $v;
+                }
+                $e = true;
+                if ('1'.static::NS_SEPARATOR === $this->namespaceVersion) {
+                    $this->namespaceVersion = self::formatNamespaceVersion(time());
+                    $e = $this->doSave([static::NS_SEPARATOR.$rootNamespace => $this->namespaceVersion], 0);
+                }
+            } catch (\Exception $e) {
+            }
+            if (true !== $e && [] !== $e) {
+                $message = 'Failed to save the new namespace'.($e instanceof \Exception ? ': '.$e->getMessage() : '.');
+                CacheItem::log($this->logger, $message, ['exception' => $e instanceof \Exception ? $e : null, 'cache-adapter' => get_debug_type($this)]);
+            }
+
+            $namespace .= $this->namespaceVersion;
+        }
+
+        if (\is_string($key) && isset($this->ids[$key])) {
+            $id = $this->ids[$key];
+        } else {
+            \assert('' !== CacheItem::validateKey($key));
+            $this->ids[$key] = $key;
+
+            if (\count($this->ids) > 1000) {
+                $this->ids = \array_slice($this->ids, 500, null, true); // stop memory leak if there are many keys
+            }
+
+            if (null === $this->maxIdLength) {
+                return $namespace.$key;
+            }
+            if (\strlen($id = $namespace.$key) <= $this->maxIdLength) {
+                return $id;
+            }
+
+            // Use xxh128 to favor speed over security, which is not an issue here
+            $this->ids[$key] = $id = substr_replace(base64_encode(hash('xxh128', $key, true)), static::NS_SEPARATOR, -(\strlen($this->namespaceVersion) + 2));
+        }
+        $id = $namespace.$id;
+
+        if (null !== $this->maxIdLength && \strlen($id) > $this->maxIdLength) {
+            return base64_encode(hash('xxh128', $id, true));
+        }
+
+        return $id;
+    }
+
+    /**
+     * @internal
+     */
+    public static function handleUnserializeCallback(string $class): never
+    {
+        throw new \DomainException('Class not found: '.$class);
+    }
+
+    private static function formatNamespaceVersion(int $value): string
+    {
+        return strtr(substr_replace(base64_encode(pack('V', $value)), static::NS_SEPARATOR, 5), '/', '_');
+    }
+}

backend/vendor/symfony/cache/Traits/CachedValueInterface.php

@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+/**
+ * @internal
+ */
+interface CachedValueInterface
+{
+    public function getValue(): mixed;
+}

backend/vendor/symfony/cache/Traits/ContractsTrait.php

@@ -0,0 +1,113 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Cache\Adapter\AdapterInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\LockRegistry;
+use Symfony\Contracts\Cache\CacheInterface;
+use Symfony\Contracts\Cache\CacheTrait;
+use Symfony\Contracts\Cache\ItemInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait ContractsTrait
+{
+    use CacheTrait {
+        doGet as private contractsGet;
+    }
+
+    private \Closure $callbackWrapper;
+    private array $computing = [];
+
+    /**
+     * Wraps the callback passed to ->get() in a callable.
+     *
+     * @return callable the previous callback wrapper
+     */
+    public function setCallbackWrapper(?callable $callbackWrapper): callable
+    {
+        if (!isset($this->callbackWrapper)) {
+            $this->callbackWrapper = LockRegistry::compute(...);
+
+            if (\in_array(\PHP_SAPI, ['cli', 'phpdbg', 'embed'], true)) {
+                $this->setCallbackWrapper(null);
+            }
+        }
+
+        if (null !== $callbackWrapper && !$callbackWrapper instanceof \Closure) {
+            $callbackWrapper = $callbackWrapper(...);
+        }
+
+        $previousWrapper = $this->callbackWrapper;
+        $this->callbackWrapper = $callbackWrapper ?? static fn (callable $callback, ItemInterface $item, bool &$save, CacheInterface $pool, \Closure $setMetadata, ?LoggerInterface $logger, ?float $beta = null) => $callback($item, $save);
+
+        return $previousWrapper;
+    }
+
+    private function doGet(AdapterInterface $pool, string $key, callable $callback, ?float $beta, ?array &$metadata = null): mixed
+    {
+        if (0 > $beta ??= 1.0) {
+            throw new InvalidArgumentException(\sprintf('Argument "$beta" provided to "%s::get()" must be a positive number, %f given.', static::class, $beta));
+        }
+
+        static $setMetadata;
+
+        $setMetadata ??= \Closure::bind(
+            static function (CacheItem $item, float $startTime, ?array &$metadata) {
+                if ($item->expiry > $endTime = microtime(true)) {
+                    $item->newMetadata[CacheItem::METADATA_EXPIRY] = $metadata[CacheItem::METADATA_EXPIRY] = $item->expiry;
+                    $item->newMetadata[CacheItem::METADATA_CTIME] = $metadata[CacheItem::METADATA_CTIME] = (int) ceil(1000 * ($endTime - $startTime));
+                } else {
+                    unset($metadata[CacheItem::METADATA_EXPIRY], $metadata[CacheItem::METADATA_CTIME], $metadata[CacheItem::METADATA_TAGS]);
+                }
+            },
+            null,
+            CacheItem::class
+        );
+
+        $this->callbackWrapper ??= LockRegistry::compute(...);
+
+        return $this->contractsGet($pool, $key, function (CacheItem $item, bool &$save) use ($pool, $callback, $setMetadata, &$metadata, $key, $beta) {
+            // don't wrap nor save recursive calls
+            if (isset($this->computing[$key])) {
+                $value = $callback($item, $save);
+                $save = false;
+
+                return $value;
+            }
+
+            $this->computing[$key] = $key;
+            $startTime = microtime(true);
+
+            if (!isset($this->callbackWrapper)) {
+                $this->setCallbackWrapper($this->setCallbackWrapper(null));
+            }
+
+            try {
+                $value = ($this->callbackWrapper)($callback, $item, $save, $pool, function (CacheItem $item) use ($setMetadata, $startTime, &$metadata) {
+                    $setMetadata($item, $startTime, $metadata);
+                }, $this->logger ?? null, $beta);
+                $setMetadata($item, $startTime, $metadata);
+
+                return $value;
+            } finally {
+                unset($this->computing[$key]);
+            }
+        }, $beta, $metadata, $this->logger ?? null);
+    }
+}

backend/vendor/symfony/cache/Traits/FilesystemCommonTrait.php

@@ -0,0 +1,190 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait FilesystemCommonTrait
+{
+    private string $directory;
+    private string $tmpSuffix;
+
+    private function init(string $namespace, ?string $directory): void
+    {
+        if (!isset($directory[0])) {
+            $directory = sys_get_temp_dir().\DIRECTORY_SEPARATOR.'symfony-cache';
+        } else {
+            $directory = realpath($directory) ?: $directory;
+        }
+        if (isset($namespace[0])) {
+            if (preg_match('#[^-+_.A-Za-z0-9]#', $namespace, $match)) {
+                throw new InvalidArgumentException(\sprintf('Namespace contains "%s" but only characters in [-+_.A-Za-z0-9] are allowed.', $match[0]));
+            }
+            $directory .= \DIRECTORY_SEPARATOR.$namespace;
+        } else {
+            $directory .= \DIRECTORY_SEPARATOR.'@';
+        }
+        if (!is_dir($directory)) {
+            @mkdir($directory, 0o777, true);
+        }
+        $directory .= \DIRECTORY_SEPARATOR;
+        // On Windows the whole path is limited to 258 chars
+        if ('\\' === \DIRECTORY_SEPARATOR && \strlen($directory) > 234) {
+            throw new InvalidArgumentException(\sprintf('Cache directory too long (%s).', $directory));
+        }
+
+        $this->directory = $directory;
+    }
+
+    protected function doClear(string $namespace): bool
+    {
+        $ok = true;
+
+        foreach ($this->scanHashDir($this->directory) as $file) {
+            if ('' !== $namespace && !str_starts_with($this->getFileKey($file), $namespace)) {
+                continue;
+            }
+
+            $ok = ($this->doUnlink($file) || !file_exists($file)) && $ok;
+        }
+
+        return $ok;
+    }
+
+    protected function doDelete(array $ids): bool
+    {
+        $ok = true;
+
+        foreach ($ids as $id) {
+            $file = $this->getFile($id);
+            $ok = (!is_file($file) || $this->doUnlink($file) || !file_exists($file)) && $ok;
+        }
+
+        return $ok;
+    }
+
+    protected function doUnlink(string $file): bool
+    {
+        return @unlink($file);
+    }
+
+    private function write(string $file, string $data, ?int $expiresAt = null): bool
+    {
+        $unlink = false;
+        set_error_handler(static fn ($type, $message, $file, $line) => throw new \ErrorException($message, 0, $type, $file, $line));
+        try {
+            $tmp = $this->directory.$this->tmpSuffix ??= str_replace('/', '-', base64_encode(random_bytes(6)));
+            try {
+                $h = fopen($tmp, 'x');
+            } catch (\ErrorException $e) {
+                if (!str_contains($e->getMessage(), 'File exists')) {
+                    throw $e;
+                }
+
+                $tmp = $this->directory.$this->tmpSuffix = str_replace('/', '-', base64_encode(random_bytes(6)));
+                $h = fopen($tmp, 'x');
+            }
+            fwrite($h, $data);
+            fclose($h);
+            $unlink = true;
+
+            if (null !== $expiresAt) {
+                touch($tmp, $expiresAt ?: time() + 31556952); // 1 year in seconds
+            }
+
+            if ('\\' === \DIRECTORY_SEPARATOR) {
+                $success = copy($tmp, $file);
+            } else {
+                $success = rename($tmp, $file);
+                $unlink = !$success;
+            }
+
+            return $success;
+        } finally {
+            restore_error_handler();
+
+            if ($unlink) {
+                @unlink($tmp);
+            }
+        }
+    }
+
+    private function getFile(string $id, bool $mkdir = false, ?string $directory = null): string
+    {
+        // Use xxh128 to favor speed over security, which is not an issue here
+        $hash = str_replace('/', '-', base64_encode(hash('xxh128', static::class.$id, true)));
+        $dir = ($directory ?? $this->directory).strtoupper($hash[0].\DIRECTORY_SEPARATOR.$hash[1].\DIRECTORY_SEPARATOR);
+
+        if ($mkdir && !is_dir($dir)) {
+            @mkdir($dir, 0o777, true);
+        }
+
+        return $dir.substr($hash, 2, 20);
+    }
+
+    private function getFileKey(string $file): string
+    {
+        return '';
+    }
+
+    private function scanHashDir(string $directory): \Generator
+    {
+        if (!is_dir($directory)) {
+            return;
+        }
+
+        $chars = '+-ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
+
+        for ($i = 0; $i < 38; ++$i) {
+            if (!is_dir($directory.$chars[$i])) {
+                continue;
+            }
+
+            for ($j = 0; $j < 38; ++$j) {
+                if (!is_dir($dir = $directory.$chars[$i].\DIRECTORY_SEPARATOR.$chars[$j])) {
+                    continue;
+                }
+
+                foreach (@scandir($dir, \SCANDIR_SORT_NONE) ?: [] as $file) {
+                    if ('.' !== $file && '..' !== $file) {
+                        yield $dir.\DIRECTORY_SEPARATOR.$file;
+                    }
+                }
+            }
+        }
+    }
+
+    public function __serialize(): array
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    public function __unserialize(array $data): void
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
+    public function __destruct()
+    {
+        if (method_exists(parent::class, '__destruct')) {
+            parent::__destruct();
+        }
+        if (isset($this->tmpSuffix) && is_file($this->directory.$this->tmpSuffix)) {
+            unlink($this->directory.$this->tmpSuffix);
+        }
+    }
+}

backend/vendor/symfony/cache/Traits/FilesystemTrait.php

@@ -0,0 +1,113 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+use Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ * @author Rob Frawley 2nd <rmf@src.run>
+ *
+ * @internal
+ */
+trait FilesystemTrait
+{
+    use FilesystemCommonTrait;
+
+    private MarshallerInterface $marshaller;
+
+    public function prune(): bool
+    {
+        $time = time();
+        $pruned = true;
+
+        foreach ($this->scanHashDir($this->directory) as $file) {
+            if (!$h = @fopen($file, 'r')) {
+                continue;
+            }
+
+            if (($expiresAt = (int) fgets($h)) && $time >= $expiresAt) {
+                fclose($h);
+                $pruned = (@unlink($file) || !file_exists($file)) && $pruned;
+            } else {
+                fclose($h);
+            }
+        }
+
+        return $pruned;
+    }
+
+    protected function doFetch(array $ids): iterable
+    {
+        $values = [];
+        $now = time();
+
+        foreach ($ids as $id) {
+            $file = $this->getFile($id);
+            if (!is_file($file) || !$h = @fopen($file, 'r')) {
+                continue;
+            }
+            if (($expiresAt = (int) fgets($h)) && $now >= $expiresAt) {
+                fclose($h);
+                @unlink($file);
+            } else {
+                $i = rawurldecode(rtrim(fgets($h)));
+                $value = stream_get_contents($h);
+                fclose($h);
+                if ($i === $id) {
+                    $values[$id] = $this->marshaller->unmarshall($value);
+                }
+            }
+        }
+
+        return $values;
+    }
+
+    protected function doHave(string $id): bool
+    {
+        $file = $this->getFile($id);
+
+        return is_file($file) && (@filemtime($file) > time() || $this->doFetch([$id]));
+    }
+
+    protected function doSave(array $values, int $lifetime): array|bool
+    {
+        $expiresAt = $lifetime ? (time() + $lifetime) : 0;
+        $values = $this->marshaller->marshall($values, $failed);
+
+        foreach ($values as $id => $value) {
+            if (!$this->write($this->getFile($id, true), $expiresAt."\n".rawurlencode($id)."\n".$value, $expiresAt)) {
+                $failed[] = $id;
+            }
+        }
+
+        if ($failed && !is_writable($this->directory)) {
+            throw new CacheException(\sprintf('Cache directory is not writable (%s).', $this->directory));
+        }
+
+        return $failed;
+    }
+
+    private function getFileKey(string $file): string
+    {
+        if (!$h = @fopen($file, 'r')) {
+            return '';
+        }
+
+        fgets($h); // expiry
+        $encodedKey = fgets($h);
+        fclose($h);
+
+        return rawurldecode(rtrim($encodedKey));
+    }
+}

backend/vendor/symfony/cache/Traits/ProxyTrait.php

@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+use Symfony\Component\Cache\PruneableInterface;
+use Symfony\Contracts\Service\ResetInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait ProxyTrait
+{
+    private object $pool;
+
+    public function prune(): bool
+    {
+        return $this->pool instanceof PruneableInterface && $this->pool->prune();
+    }
+
+    public function reset(): void
+    {
+        if ($this->pool instanceof ResetInterface) {
+            $this->pool->reset();
+        }
+    }
+}

backend/vendor/symfony/cache/Traits/Redis62ProxyTrait.php

@@ -0,0 +1,52 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+if (version_compare(phpversion('redis'), '6.2.0', '>=')) {
+    /**
+     * @internal
+     */
+    trait Redis62ProxyTrait
+    {
+        public function expiremember($key, $field, $ttl, $unit = null): \Redis|false|int
+        {
+            return $this->initializeLazyObject()->expiremember(...\func_get_args());
+        }
+
+        public function expirememberat($key, $field, $timestamp): \Redis|false|int
+        {
+            return $this->initializeLazyObject()->expirememberat(...\func_get_args());
+        }
+
+        public function getWithMeta($key): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->getWithMeta(...\func_get_args());
+        }
+
+        public function serverName(): false|string
+        {
+            return $this->initializeLazyObject()->serverName(...\func_get_args());
+        }
+
+        public function serverVersion(): false|string
+        {
+            return $this->initializeLazyObject()->serverVersion(...\func_get_args());
+        }
+    }
+} else {
+    /**
+     * @internal
+     */
+    trait Redis62ProxyTrait
+    {
+    }
+}

backend/vendor/symfony/cache/Traits/Redis63ProxyTrait.php

@@ -0,0 +1,162 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+if (version_compare(phpversion('redis'), '6.3.0', '>=')) {
+    /**
+     * @internal
+     */
+    trait Redis63ProxyTrait
+    {
+        public function delifeq($key, $value): \Redis|int|false
+        {
+            return $this->initializeLazyObject()->delifeq(...\func_get_args());
+        }
+
+        public function hexpire($key, $ttl, $fields, $mode = null): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->hexpire(...\func_get_args());
+        }
+
+        public function hexpireat($key, $time, $fields, $mode = null): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->hexpireat(...\func_get_args());
+        }
+
+        public function hexpiretime($key, $fields): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->hexpiretime(...\func_get_args());
+        }
+
+        public function hgetdel($key, $fields): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->hgetdel(...\func_get_args());
+        }
+
+        public function hgetex($key, $fields, $expiry = null): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->hgetex(...\func_get_args());
+        }
+
+        public function hGetWithMeta($key, $member): mixed
+        {
+            return $this->initializeLazyObject()->hGetWithMeta(...\func_get_args());
+        }
+
+        public function hpersist($key, $fields): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->hpersist(...\func_get_args());
+        }
+
+        public function hpexpire($key, $ttl, $fields, $mode = null): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->hpexpire(...\func_get_args());
+        }
+
+        public function hpexpireat($key, $mstime, $fields, $mode = null): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->hpexpireat(...\func_get_args());
+        }
+
+        public function hpexpiretime($key, $fields): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->hpexpiretime(...\func_get_args());
+        }
+
+        public function hpttl($key, $fields): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->hpttl(...\func_get_args());
+        }
+
+        public function hsetex($key, $fields, $expiry = null): \Redis|int|false
+        {
+            return $this->initializeLazyObject()->hsetex(...\func_get_args());
+        }
+
+        public function httl($key, $fields): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->httl(...\func_get_args());
+        }
+
+        public function vadd($key, $values, $element, $options = null): \Redis|int|false
+        {
+            return $this->initializeLazyObject()->vadd(...\func_get_args());
+        }
+
+        public function vcard($key): \Redis|int|false
+        {
+            return $this->initializeLazyObject()->vcard(...\func_get_args());
+        }
+
+        public function vdim($key): \Redis|int|false
+        {
+            return $this->initializeLazyObject()->vdim(...\func_get_args());
+        }
+
+        public function vemb($key, $member, $raw = false): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->vemb(...\func_get_args());
+        }
+
+        public function vgetattr($key, $member, $decode = true): \Redis|array|string|false
+        {
+            return $this->initializeLazyObject()->vgetattr(...\func_get_args());
+        }
+
+        public function vinfo($key): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->vinfo(...\func_get_args());
+        }
+
+        public function vismember($key, $member): \Redis|bool
+        {
+            return $this->initializeLazyObject()->vismember(...\func_get_args());
+        }
+
+        public function vlinks($key, $member, $withscores = false): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->vlinks(...\func_get_args());
+        }
+
+        public function vrandmember($key, $count = 0): \Redis|array|string|false
+        {
+            return $this->initializeLazyObject()->vrandmember(...\func_get_args());
+        }
+
+        public function vrange($key, $min, $max, $count = -1): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->vrange(...\func_get_args());
+        }
+
+        public function vrem($key, $member): \Redis|int|false
+        {
+            return $this->initializeLazyObject()->vrem(...\func_get_args());
+        }
+
+        public function vsetattr($key, $member, $attributes): \Redis|int|false
+        {
+            return $this->initializeLazyObject()->vsetattr(...\func_get_args());
+        }
+
+        public function vsim($key, $member, $options = null): \Redis|array|false
+        {
+            return $this->initializeLazyObject()->vsim(...\func_get_args());
+        }
+    }
+} else {
+    /**
+     * @internal
+     */
+    trait Redis63ProxyTrait
+    {
+    }
+}

backend/vendor/symfony/cache/Traits/RedisCluster62ProxyTrait.php

@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+if (version_compare(phpversion('redis'), '6.2.0', '>=')) {
+    /**
+     * @internal
+     */
+    trait RedisCluster62ProxyTrait
+    {
+        public function expiremember($key, $field, $ttl, $unit = null): \Redis|false|int
+        {
+            return $this->initializeLazyObject()->expiremember(...\func_get_args());
+        }
+
+        public function expirememberat($key, $field, $timestamp): \Redis|false|int
+        {
+            return $this->initializeLazyObject()->expirememberat(...\func_get_args());
+        }
+
+        public function getdel($key): mixed
+        {
+            return $this->initializeLazyObject()->getdel(...\func_get_args());
+        }
+
+        public function getWithMeta($key): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->getWithMeta(...\func_get_args());
+        }
+    }
+} else {
+    /**
+     * @internal
+     */
+    trait RedisCluster62ProxyTrait
+    {
+    }
+}

backend/vendor/symfony/cache/Traits/RedisCluster63ProxyTrait.php

@@ -0,0 +1,162 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+if (version_compare(phpversion('redis'), '6.3.0', '>=')) {
+    /**
+     * @internal
+     */
+    trait RedisCluster63ProxyTrait
+    {
+        public function delifeq($key, $value): \RedisCluster|int|false
+        {
+            return $this->initializeLazyObject()->delifeq(...\func_get_args());
+        }
+
+        public function hexpire($key, $ttl, $fields, $mode = null): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->hexpire(...\func_get_args());
+        }
+
+        public function hexpireat($key, $time, $fields, $mode = null): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->hexpireat(...\func_get_args());
+        }
+
+        public function hexpiretime($key, $fields): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->hexpiretime(...\func_get_args());
+        }
+
+        public function hgetdel($key, $fields): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->hgetdel(...\func_get_args());
+        }
+
+        public function hgetex($key, $fields, $expiry = null): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->hgetex(...\func_get_args());
+        }
+
+        public function hgetWithMeta($key, $member): mixed
+        {
+            return $this->initializeLazyObject()->hgetWithMeta(...\func_get_args());
+        }
+
+        public function hpersist($key, $fields): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->hpersist(...\func_get_args());
+        }
+
+        public function hpexpire($key, $ttl, $fields, $mode = null): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->hpexpire(...\func_get_args());
+        }
+
+        public function hpexpireat($key, $mstime, $fields, $mode = null): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->hpexpireat(...\func_get_args());
+        }
+
+        public function hpexpiretime($key, $fields): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->hpexpiretime(...\func_get_args());
+        }
+
+        public function hpttl($key, $fields): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->hpttl(...\func_get_args());
+        }
+
+        public function hsetex($key, $fields, $expiry = null): \RedisCluster|int|false
+        {
+            return $this->initializeLazyObject()->hsetex(...\func_get_args());
+        }
+
+        public function httl($key, $fields): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->httl(...\func_get_args());
+        }
+
+        public function vadd($key, $values, $element, $options = null): \RedisCluster|int|false
+        {
+            return $this->initializeLazyObject()->vadd(...\func_get_args());
+        }
+
+        public function vcard($key): \RedisCluster|int|false
+        {
+            return $this->initializeLazyObject()->vcard(...\func_get_args());
+        }
+
+        public function vdim($key): \RedisCluster|int|false
+        {
+            return $this->initializeLazyObject()->vdim(...\func_get_args());
+        }
+
+        public function vemb($key, $member, $raw = false): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->vemb(...\func_get_args());
+        }
+
+        public function vgetattr($key, $member, $decode = true): \RedisCluster|array|string|false
+        {
+            return $this->initializeLazyObject()->vgetattr(...\func_get_args());
+        }
+
+        public function vinfo($key): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->vinfo(...\func_get_args());
+        }
+
+        public function vismember($key, $member): \RedisCluster|bool
+        {
+            return $this->initializeLazyObject()->vismember(...\func_get_args());
+        }
+
+        public function vlinks($key, $member, $withscores = false): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->vlinks(...\func_get_args());
+        }
+
+        public function vrandmember($key, $count = 0): \RedisCluster|array|string|false
+        {
+            return $this->initializeLazyObject()->vrandmember(...\func_get_args());
+        }
+
+        public function vrange($key, $min, $max, $count = -1): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->vrange(...\func_get_args());
+        }
+
+        public function vrem($key, $member): \RedisCluster|int|false
+        {
+            return $this->initializeLazyObject()->vrem(...\func_get_args());
+        }
+
+        public function vsetattr($key, $member, $attributes): \RedisCluster|int|false
+        {
+            return $this->initializeLazyObject()->vsetattr(...\func_get_args());
+        }
+
+        public function vsim($key, $member, $options = null): \RedisCluster|array|false
+        {
+            return $this->initializeLazyObject()->vsim(...\func_get_args());
+        }
+    }
+} else {
+    /**
+     * @internal
+     */
+    trait RedisCluster63ProxyTrait
+    {
+    }
+}

backend/vendor/symfony/cache/Traits/RedisClusterNodeProxy.php

@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+/**
+ * This file acts as a wrapper to the \RedisCluster implementation so it can accept the same type of calls as
+ *  individual \Redis objects.
+ *
+ * Calls are made to individual nodes via: RedisCluster->{method}($host, ...args)'
+ *  according to https://github.com/phpredis/phpredis/blob/develop/cluster.markdown#directed-node-commands
+ *
+ * @author Jack Thomas <jack.thomas@solidalpha.com>
+ *
+ * @internal
+ */
+class RedisClusterNodeProxy
+{
+    public function __construct(
+        private array $host,
+        private \RedisCluster $redis,
+    ) {
+    }
+
+    public function __call(string $method, array $args)
+    {
+        return $this->redis->{$method}($this->host, ...$args);
+    }
+
+    public function scan(&$iIterator, $strPattern = null, $iCount = null)
+    {
+        return $this->redis->scan($iIterator, $this->host, $strPattern, $iCount);
+    }
+
+    public function getOption($name)
+    {
+        return $this->redis->getOption($name);
+    }
+}

backend/vendor/symfony/cache/Traits/RedisProxyTrait.php

@@ -0,0 +1,51 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+/**
+ * @internal
+ */
+trait RedisProxyTrait
+{
+    private \Closure $initializer;
+    private ?parent $realInstance = null;
+
+    public static function createLazyProxy(\Closure $initializer, ?self $instance = null): static
+    {
+        $instance ??= (new \ReflectionClass(static::class))->newInstanceWithoutConstructor();
+        $instance->realInstance = null;
+        $instance->initializer = $initializer;
+
+        return $instance;
+    }
+
+    public function isLazyObjectInitialized(bool $partial = false): bool
+    {
+        return isset($this->realInstance);
+    }
+
+    public function initializeLazyObject(): object
+    {
+        return $this->realInstance ??= ($this->initializer)();
+    }
+
+    public function resetLazyObject(): bool
+    {
+        $this->realInstance = null;
+
+        return true;
+    }
+
+    public function __destruct()
+    {
+    }
+}

backend/vendor/symfony/cache/Traits/RedisTrait.php

@@ -0,0 +1,827 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+use Predis\Command\Redis\UNLINK;
+use Predis\Connection\Aggregate\ClusterInterface;
+use Predis\Connection\Aggregate\RedisCluster;
+use Predis\Connection\Aggregate\ReplicationInterface;
+use Predis\Connection\Cluster\ClusterInterface as Predis2ClusterInterface;
+use Predis\Connection\Cluster\RedisCluster as Predis2RedisCluster;
+use Predis\Connection\Replication\ReplicationInterface as Predis2ReplicationInterface;
+use Predis\Response\ErrorInterface;
+use Predis\Response\Status;
+use Relay\Cluster as RelayCluster;
+use Relay\Relay;
+use Relay\Sentinel;
+use Symfony\Component\Cache\Exception\CacheException;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+use Symfony\Component\Cache\Marshaller\DefaultMarshaller;
+use Symfony\Component\Cache\Marshaller\MarshallerInterface;
+
+/**
+ * @author Aurimas Niekis <aurimas@niekis.lt>
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait RedisTrait
+{
+    private static array $defaultConnectionOptions = [
+        'class' => null,
+        'auth' => null,
+        'persistent' => false,
+        'persistent_id' => null,
+        'timeout' => 30,
+        'read_timeout' => 0,
+        'retry_interval' => 0,
+        'tcp_keepalive' => 0,
+        'lazy' => null,
+        'cluster' => false,
+        'cluster_command_timeout' => 0,
+        'cluster_relay_context' => [],
+        'sentinel' => null,
+        'dbindex' => 0,
+        'failover' => 'none',
+        'ssl' => null, // see https://php.net/context.ssl
+    ];
+    private \Redis|Relay|RelayCluster|\RedisArray|\RedisCluster|\Predis\ClientInterface $redis;
+    private MarshallerInterface $marshaller;
+
+    private function init(\Redis|Relay|RelayCluster|\RedisArray|\RedisCluster|\Predis\ClientInterface $redis, string $namespace, int $defaultLifetime, ?MarshallerInterface $marshaller): void
+    {
+        parent::__construct($namespace, $defaultLifetime);
+
+        if (preg_match('#[^-+_.A-Za-z0-9]#', $namespace, $match)) {
+            throw new InvalidArgumentException(\sprintf('RedisAdapter namespace contains "%s" but only characters in [-+_.A-Za-z0-9] are allowed.', $match[0]));
+        }
+
+        if ($redis instanceof \Predis\ClientInterface && $redis->getOptions()->exceptions) {
+            $options = clone $redis->getOptions();
+            \Closure::bind(function () { $this->options['exceptions'] = false; }, $options, $options)();
+            $redis = new $redis($redis->getConnection(), $options);
+        }
+
+        $this->redis = $redis;
+        $this->marshaller = $marshaller ?? new DefaultMarshaller();
+    }
+
+    /**
+     * Creates a Redis connection using a DSN configuration.
+     *
+     * Example DSN:
+     *   - redis://localhost
+     *   - redis://example.com:1234
+     *   - redis://secret@example.com/13
+     *   - redis:///var/run/redis.sock
+     *   - redis://secret@/var/run/redis.sock/13
+     *
+     * @param array $options See self::$defaultConnectionOptions
+     *
+     * @throws InvalidArgumentException when the DSN is invalid
+     */
+    public static function createConnection(#[\SensitiveParameter] string $dsn, array $options = []): \Redis|\RedisArray|\RedisCluster|\Predis\ClientInterface|Relay|RelayCluster
+    {
+        $scheme = match (true) {
+            str_starts_with($dsn, 'redis:') => 'redis',
+            str_starts_with($dsn, 'rediss:') => 'rediss',
+            str_starts_with($dsn, 'valkey:') => 'valkey',
+            str_starts_with($dsn, 'valkeys:') => 'valkeys',
+            default => throw new InvalidArgumentException('Invalid Redis DSN: it does not start with "redis[s]:" nor "valkey[s]:".'),
+        };
+
+        if (!\extension_loaded('redis') && !\extension_loaded('relay') && !class_exists(\Predis\Client::class)) {
+            throw new CacheException('Cannot find the "redis" extension nor the "relay" extension nor the "predis/predis" package.');
+        }
+
+        $auth = null;
+        $params = preg_replace_callback('#^'.$scheme.':(//)?(?:(?:(?<user>[^:@]*+):)?(?<password>[^@]*+)@)?#', function ($m) use (&$auth) {
+            if (isset($m['password'])) {
+                if (\in_array($m['user'], ['', 'default'], true)) {
+                    $auth = rawurldecode($m['password']);
+                } else {
+                    $auth = [rawurldecode($m['user']), rawurldecode($m['password'])];
+                }
+
+                if ('' === $auth) {
+                    $auth = null;
+                }
+            }
+
+            return 'file:'.($m[1] ?? '');
+        }, $dsn);
+
+        if (false === $params = parse_url($params)) {
+            throw new InvalidArgumentException('Invalid Redis DSN.');
+        }
+
+        $query = $hosts = [];
+
+        $tls = 'rediss' === $scheme || 'valkeys' === $scheme;
+        $tcpScheme = $tls ? 'tls' : 'tcp';
+
+        if (isset($params['query'])) {
+            parse_str($params['query'], $query);
+
+            if (isset($query['host'])) {
+                if (!\is_array($hosts = $query['host'])) {
+                    throw new InvalidArgumentException('Invalid Redis DSN: query parameter "host" must be an array.');
+                }
+                foreach ($hosts as $host => $parameters) {
+                    if (\is_string($parameters)) {
+                        parse_str($parameters, $parameters);
+                    }
+                    if (false === $i = strrpos($host, ':')) {
+                        $hosts[$host] = ['scheme' => $tcpScheme, 'host' => $host, 'port' => 6379] + $parameters;
+                    } elseif ($port = (int) substr($host, 1 + $i)) {
+                        $hosts[$host] = ['scheme' => $tcpScheme, 'host' => substr($host, 0, $i), 'port' => $port] + $parameters;
+                    } else {
+                        $hosts[$host] = ['scheme' => 'unix', 'path' => substr($host, 0, $i)] + $parameters;
+                    }
+                }
+                $hosts = array_values($hosts);
+            }
+        }
+
+        if (isset($params['host']) || isset($params['path'])) {
+            if (!isset($params['dbindex']) && isset($params['path'])) {
+                if (preg_match('#/(\d+)?$#', $params['path'], $m)) {
+                    $params['dbindex'] = $m[1] ?? $query['dbindex'] ?? '0';
+                    $params['path'] = substr($params['path'], 0, -\strlen($m[0]));
+                } elseif (isset($params['host'])) {
+                    throw new InvalidArgumentException('Invalid Redis DSN: parameter "dbindex" must be a number.');
+                }
+            }
+
+            if (isset($params['host'])) {
+                array_unshift($hosts, ['scheme' => $tcpScheme, 'host' => $params['host'], 'port' => $params['port'] ?? 6379]);
+            } else {
+                array_unshift($hosts, ['scheme' => 'unix', 'path' => $params['path']]);
+            }
+        }
+
+        if (!$hosts) {
+            throw new InvalidArgumentException('Invalid Redis DSN: missing host.');
+        }
+
+        if (isset($params['dbindex'], $query['dbindex']) && $params['dbindex'] !== $query['dbindex']) {
+            throw new InvalidArgumentException('Invalid Redis DSN: path and query "dbindex" parameters mismatch.');
+        }
+
+        $params += $query + $options + self::$defaultConnectionOptions;
+
+        $booleanStreamOptions = [
+            'allow_self_signed',
+            'capture_peer_cert',
+            'capture_peer_cert_chain',
+            'disable_compression',
+            'SNI_enabled',
+            'verify_peer',
+            'verify_peer_name',
+        ];
+
+        foreach ($params['ssl'] ?? [] as $streamOption => $value) {
+            if (\in_array($streamOption, $booleanStreamOptions, true) && \is_string($value)) {
+                $params['ssl'][$streamOption] = filter_var($value, \FILTER_VALIDATE_BOOL);
+            }
+        }
+
+        $aliases = [
+            'sentinel_master' => 'sentinel',
+            'redis_sentinel' => 'sentinel',
+            'redis_cluster' => 'cluster',
+        ];
+        foreach ($aliases as $alias => $key) {
+            $params[$key] = match (true) {
+                \array_key_exists($key, $query) => $query[$key],
+                \array_key_exists($alias, $query) => $query[$alias],
+                \array_key_exists($key, $options) => $options[$key],
+                \array_key_exists($alias, $options) => $options[$alias],
+                default => $params[$key],
+            };
+        }
+
+        if (!isset($params['sentinel'])) {
+            $params['auth'] ??= $auth;
+            $sentinelAuth = null;
+        } elseif (!class_exists(\Predis\Client::class) && !class_exists(\RedisSentinel::class) && !class_exists(Sentinel::class)) {
+            throw new CacheException('Redis Sentinel support requires one of: "predis/predis", "ext-redis >= 6.1", "ext-relay".');
+        } else {
+            $sentinelAuth = $params['auth'] ?? null;
+            $params['auth'] = $auth ?? $params['auth'];
+        }
+
+        foreach (['lazy', 'persistent', 'cluster'] as $option) {
+            if (!\is_bool($params[$option] ?? false)) {
+                $params[$option] = filter_var($params[$option], \FILTER_VALIDATE_BOOLEAN);
+            }
+        }
+
+        if ($params['cluster'] && isset($params['sentinel'])) {
+            throw new InvalidArgumentException('Cannot use both "cluster" and "sentinel" at the same time.');
+        }
+
+        $class = $params['class'] ?? match (true) {
+            $params['cluster'] => match (true) {
+                \extension_loaded('redis') => \RedisCluster::class,
+                \extension_loaded('relay') => RelayCluster::class,
+                default => \Predis\Client::class,
+            },
+            isset($params['sentinel']) => match (true) {
+                \extension_loaded('redis') => \Redis::class,
+                \extension_loaded('relay') => Relay::class,
+                default => \Predis\Client::class,
+            },
+            1 < \count($hosts) && \extension_loaded('redis') => \RedisArray::class,
+            \extension_loaded('redis') => \Redis::class,
+            \extension_loaded('relay') => Relay::class,
+            default => \Predis\Client::class,
+        };
+
+        if (isset($params['sentinel']) && !is_a($class, \Predis\Client::class, true) && !class_exists(\RedisSentinel::class) && !class_exists(Sentinel::class)) {
+            throw new CacheException(\sprintf('Cannot use Redis Sentinel: class "%s" does not extend "Predis\Client" and neither ext-redis >= 6.1 nor ext-relay have been found.', $class));
+        }
+
+        $isRedisExt = is_a($class, \Redis::class, true);
+        $isRelayExt = !$isRedisExt && is_a($class, Relay::class, true);
+
+        if ($isRedisExt || $isRelayExt) {
+            $connect = $params['persistent'] || $params['persistent_id'] ? 'pconnect' : 'connect';
+
+            $initializer = static function () use ($class, $isRedisExt, $connect, $params, $sentinelAuth, $hosts, $tls) {
+                $sentinelClass = $isRedisExt ? \RedisSentinel::class : Sentinel::class;
+                $redis = new $class();
+                $hostIndex = 0;
+                do {
+                    $host = $hosts[$hostIndex]['host'] ?? $hosts[$hostIndex]['path'];
+                    $port = $hosts[$hostIndex]['port'] ?? 0;
+                    $passAuth = null !== $sentinelAuth && (!$isRedisExt || \defined('Redis::OPT_NULL_MULTIBULK_AS_NULL'));
+                    $address = false;
+
+                    if (isset($hosts[$hostIndex]['host']) && $tls) {
+                        $host = 'tls://'.$host;
+                    }
+
+                    if (!isset($params['sentinel'])) {
+                        break;
+                    }
+
+                    try {
+                        if ($isRedisExt) {
+                            $options = [
+                                'host' => $host,
+                                'port' => $port,
+                                'connectTimeout' => (float) $params['timeout'],
+                                'persistent' => $params['persistent_id'],
+                                'retryInterval' => (int) $params['retry_interval'],
+                                'readTimeout' => (float) $params['read_timeout'],
+                            ];
+
+                            if ($passAuth) {
+                                $options['auth'] = $sentinelAuth;
+                            }
+
+                            if (null !== $params['ssl'] && version_compare(phpversion('redis'), '6.2.0', '>=')) {
+                                $options['ssl'] = $params['ssl'];
+                            }
+
+                            $sentinel = new \RedisSentinel($options);
+                        } else {
+                            $extra = $passAuth ? [$sentinelAuth] : [];
+
+                            $sentinel = @new $sentinelClass($host, $port, $params['timeout'], (string) $params['persistent_id'], $params['retry_interval'], $params['read_timeout'], ...$extra);
+                        }
+
+                        if ($address = @$sentinel->getMasterAddrByName($params['sentinel'])) {
+                            [$host, $port] = $address;
+                        }
+                    } catch (\RedisException|\Relay\Exception $redisException) {
+                    }
+                } while (++$hostIndex < \count($hosts) && !$address);
+
+                if (isset($params['sentinel']) && !$address) {
+                    throw new InvalidArgumentException(\sprintf('Failed to retrieve master information from sentinel "%s".', $params['sentinel']), previous: $redisException ?? null);
+                }
+
+                try {
+                    $extra = [
+                        'stream' => self::filterSslOptions($params['ssl'] ?? []) ?: null,
+                    ];
+
+                    if (null !== $params['auth']) {
+                        $extra['auth'] = $params['auth'];
+                    }
+                    @$redis->{$connect}($host, $port, (float) $params['timeout'], (string) $params['persistent_id'], $params['retry_interval'], $params['read_timeout'], ...\defined('Redis::SCAN_PREFIX') || !$isRedisExt ? [$extra] : []);
+
+                    set_error_handler(function ($type, $msg) use (&$error) { $error = $msg; });
+                    try {
+                        $isConnected = $redis->isConnected();
+                    } finally {
+                        restore_error_handler();
+                    }
+                    if (!$isConnected) {
+                        $error = preg_match('/^Redis::p?connect\(\): (.*)/', $error ?? $redis->getLastError() ?? '', $error) ? \sprintf(' (%s)', $error[1]) : '';
+                        throw new InvalidArgumentException('Redis connection failed: '.$error.'.');
+                    }
+
+                    if (0 < $params['tcp_keepalive'] && (!$isRedisExt || \defined('Redis::OPT_TCP_KEEPALIVE'))) {
+                        $redis->setOption($isRedisExt ? \Redis::OPT_TCP_KEEPALIVE : Relay::OPT_TCP_KEEPALIVE, $params['tcp_keepalive']);
+                    }
+
+                    if (!$redis->select($params['dbindex'])) {
+                        $e = preg_replace('/^ERR /', '', $redis->getLastError());
+                        throw new InvalidArgumentException('Redis connection failed: '.$e.'.');
+                    }
+
+                } catch (\RedisException|\Relay\Exception $e) {
+                    throw new InvalidArgumentException('Redis connection failed: '.$e->getMessage());
+                }
+
+                return $redis;
+            };
+
+            if ($params['lazy']) {
+                $redis = $isRedisExt ? RedisProxy::createLazyProxy($initializer) : RelayProxy::createLazyProxy($initializer);
+            } else {
+                $redis = $initializer();
+            }
+        } elseif (is_a($class, \RedisArray::class, true)) {
+            foreach ($hosts as $i => $host) {
+                $hosts[$i] = match ($host['scheme']) {
+                    'tcp' => $host['host'].':'.$host['port'],
+                    'tls' => 'tls://'.$host['host'].':'.$host['port'],
+                    default => $host['path'],
+                };
+            }
+            $params['lazy_connect'] = $params['lazy'] ?? true;
+            $params['connect_timeout'] = $params['timeout'];
+
+            try {
+                $redis = new $class($hosts, $params);
+            } catch (\RedisClusterException $e) {
+                throw new InvalidArgumentException('Redis connection failed: '.$e->getMessage());
+            }
+
+            if (0 < $params['tcp_keepalive'] && (!$isRedisExt || \defined('Redis::OPT_TCP_KEEPALIVE'))) {
+                $redis->setOption($isRedisExt ? \Redis::OPT_TCP_KEEPALIVE : Relay::OPT_TCP_KEEPALIVE, $params['tcp_keepalive']);
+            }
+        } elseif (is_a($class, RelayCluster::class, true)) {
+            $initializer = static function () use ($class, $params, $hosts) {
+                foreach ($hosts as $i => $host) {
+                    $hosts[$i] = match ($host['scheme']) {
+                        'tcp' => $host['host'].':'.$host['port'],
+                        'tls' => 'tls://'.$host['host'].':'.$host['port'],
+                        default => $host['path'],
+                    };
+                }
+
+                try {
+                    $context = $params['cluster_relay_context'];
+                    $context['stream'] = self::filterSslOptions($params['ssl'] ?? []) ?: null;
+
+                    foreach ($context as $name => $value) {
+                        match ($name) {
+                            'use-cache', 'client-tracking', 'throw-on-error', 'client-invalidations', 'reply-literal', 'persistent',
+                                => $context[$name] = filter_var($value, \FILTER_VALIDATE_BOOLEAN),
+                            'max-retries', 'serializer', 'compression', 'compression-level',
+                                => $context[$name] = filter_var($value, \FILTER_VALIDATE_INT),
+                            default => null,
+                        };
+                    }
+
+                    $relayCluster = new $class(
+                        name: null,
+                        seeds: $hosts,
+                        connect_timeout: $params['timeout'],
+                        command_timeout: $params['cluster_command_timeout'],
+                        persistent: $params['persistent'],
+                        auth: $params['auth'] ?? null,
+                        context: $context,
+                    );
+                } catch (\Relay\Exception $e) {
+                    throw new InvalidArgumentException('Relay cluster connection failed: '.$e->getMessage());
+                }
+
+                if (0 < $params['tcp_keepalive']) {
+                    $relayCluster->setOption(Relay::OPT_TCP_KEEPALIVE, $params['tcp_keepalive']);
+                }
+
+                if (0 < $params['read_timeout']) {
+                    $relayCluster->setOption(Relay::OPT_READ_TIMEOUT, $params['read_timeout']);
+                }
+
+                return $relayCluster;
+            };
+
+            $redis = $params['lazy'] ? RelayClusterProxy::createLazyProxy($initializer) : $initializer();
+        } elseif (is_a($class, \RedisCluster::class, true)) {
+            $initializer = static function () use ($isRedisExt, $class, $params, $hosts) {
+                foreach ($hosts as $i => $host) {
+                    $hosts[$i] = match ($host['scheme']) {
+                        'tcp' => $host['host'].':'.$host['port'],
+                        'tls' => 'tls://'.$host['host'].':'.$host['port'],
+                        default => $host['path'],
+                    };
+                }
+
+                try {
+                    $redis = new $class(null, $hosts, $params['timeout'], $params['read_timeout'], $params['persistent'], $params['auth'] ?? '', ...\defined('Redis::SCAN_PREFIX') ? [$params['ssl'] ?? null] : []);
+                } catch (\RedisClusterException $e) {
+                    throw new InvalidArgumentException('Redis connection failed: '.$e->getMessage());
+                }
+
+                if (0 < $params['tcp_keepalive'] && (!$isRedisExt || \defined('Redis::OPT_TCP_KEEPALIVE'))) {
+                    $redis->setOption($isRedisExt ? \Redis::OPT_TCP_KEEPALIVE : Relay::OPT_TCP_KEEPALIVE, $params['tcp_keepalive']);
+                }
+                $redis->setOption(\RedisCluster::OPT_SLAVE_FAILOVER, match ($params['failover']) {
+                    'error' => \RedisCluster::FAILOVER_ERROR,
+                    'distribute' => \RedisCluster::FAILOVER_DISTRIBUTE,
+                    'slaves' => \RedisCluster::FAILOVER_DISTRIBUTE_SLAVES,
+                    'none' => \RedisCluster::FAILOVER_NONE,
+                });
+
+                return $redis;
+            };
+
+            $redis = $params['lazy'] ? RedisClusterProxy::createLazyProxy($initializer) : $initializer();
+        } elseif (is_a($class, \Predis\ClientInterface::class, true)) {
+            if ($params['cluster']) {
+                $params['cluster'] = 'redis';
+            } else {
+                unset($params['cluster']);
+            }
+            if (isset($params['sentinel'])) {
+                $params['replication'] = 'sentinel';
+                $params['service'] = $params['sentinel'];
+            }
+            $params += ['parameters' => []];
+            $params['parameters'] += [
+                'persistent' => $params['persistent'],
+                'timeout' => $params['timeout'],
+                'read_write_timeout' => $params['read_timeout'],
+                'tcp_nodelay' => true,
+            ];
+            if ($params['dbindex']) {
+                $params['parameters']['database'] = $params['dbindex'];
+            }
+            if (\is_array($params['auth'])) {
+                // ACL
+                $params['parameters']['username'] = $params['auth'][0];
+                $params['parameters']['password'] = $params['auth'][1];
+            } elseif (null !== $params['auth']) {
+                $params['parameters']['password'] = $params['auth'];
+            }
+
+            if (isset($params['sentinel']) && null !== $sentinelAuth) {
+                if (\is_array($sentinelAuth)) {
+                    $sentinelUsername = $sentinelAuth[0];
+                    $sentinelPassword = $sentinelAuth[1];
+                } else {
+                    $sentinelUsername = null;
+                    $sentinelPassword = $sentinelAuth;
+                }
+
+                foreach ($hosts as $i => $host) {
+                    $hosts[$i]['password'] ??= $sentinelPassword;
+
+                    if (null !== $sentinelUsername) {
+                        $hosts[$i]['username'] ??= $sentinelUsername;
+                    }
+                }
+            }
+
+            if (isset($params['ssl'])) {
+                foreach ($hosts as $i => $host) {
+                    $hosts[$i]['ssl'] ??= $params['ssl'];
+                }
+            }
+
+            if (1 === \count($hosts) && !isset($params['cluster']) & !isset($params['sentinel'])) {
+                $hosts = $hosts[0];
+            } elseif (\in_array($params['failover'], ['slaves', 'distribute'], true) && !isset($params['replication'])) {
+                $params['replication'] = true;
+                $hosts[0] += ['alias' => 'master'];
+            }
+            $params['exceptions'] = false;
+
+            $redis = new $class($hosts, array_diff_key($params, array_diff_key(self::$defaultConnectionOptions, ['cluster' => null])));
+            if (isset($params['sentinel'])) {
+                $redis->getConnection()->setSentinelTimeout($params['timeout']);
+            }
+        } elseif (class_exists($class, false)) {
+            throw new InvalidArgumentException(\sprintf('"%s" is not a subclass of "Redis", "RedisArray", "RedisCluster", "Relay\Relay" nor "Predis\ClientInterface".', $class));
+        } else {
+            throw new InvalidArgumentException(\sprintf('Class "%s" does not exist.', $class));
+        }
+
+        return $redis;
+    }
+
+    protected function doFetch(array $ids): iterable
+    {
+        if (!$ids) {
+            return [];
+        }
+
+        $result = [];
+
+        if (($this->redis instanceof \Predis\ClientInterface && ($this->redis->getConnection() instanceof ClusterInterface || $this->redis->getConnection() instanceof Predis2ClusterInterface)) || $this->redis instanceof RelayCluster) {
+            $values = $this->pipeline(function () use ($ids) {
+                foreach ($ids as $id) {
+                    yield 'get' => [$id];
+                }
+            });
+        } else {
+            $values = $this->redis->mget($ids);
+
+            if (!\is_array($values) || \count($values) !== \count($ids)) {
+                return [];
+            }
+
+            $values = array_combine($ids, $values);
+        }
+
+        foreach ($values as $id => $v) {
+            if ($v) {
+                $result[$id] = $this->marshaller->unmarshall($v);
+            }
+        }
+
+        return $result;
+    }
+
+    protected function doHave(string $id): bool
+    {
+        return (bool) $this->redis->exists($id);
+    }
+
+    protected function doClear(string $namespace): bool
+    {
+        if ($this->redis instanceof \Predis\ClientInterface) {
+            $prefix = $this->redis->getOptions()->prefix ? $this->redis->getOptions()->prefix->getPrefix() : '';
+            $prefixLen = \strlen($prefix ?? '');
+        }
+
+        $cleared = true;
+
+        if ($this->redis instanceof RelayCluster) {
+            $prefix = Relay::SCAN_PREFIX & $this->redis->getOption(Relay::OPT_SCAN) ? '' : $this->redis->getOption(Relay::OPT_PREFIX);
+            $prefixLen = \strlen($prefix);
+            $pattern = $prefix.$namespace.'*';
+            foreach ($this->redis->_masters() as $ipAndPort) {
+                $address = implode(':', $ipAndPort);
+                $cursor = null;
+                do {
+                    $keys = $this->redis->scan($cursor, $address, $pattern, 1000);
+                    if (isset($keys[1]) && \is_array($keys[1])) {
+                        $cursor = $keys[0];
+                        $keys = $keys[1];
+                    }
+
+                    if ($keys) {
+                        if ($prefixLen) {
+                            foreach ($keys as $i => $key) {
+                                $keys[$i] = substr($key, $prefixLen);
+                            }
+                        }
+                        $this->doDelete($keys);
+                    }
+                } while ($cursor);
+            }
+
+            return $cleared;
+        }
+
+        $hosts = $this->getHosts();
+        $host = reset($hosts);
+        if ($host instanceof \Predis\Client) {
+            $connection = $host->getConnection();
+
+            if ($connection instanceof ReplicationInterface) {
+                $hosts = [$host->getClientFor('master')];
+            } elseif ($connection instanceof Predis2ReplicationInterface) {
+                $connection->switchToMaster();
+
+                $hosts = [$host];
+            }
+        }
+
+        foreach ($hosts as $host) {
+            if (!isset($namespace[0])) {
+                $cleared = $host->flushDb() && $cleared;
+                continue;
+            }
+
+            $info = $host->info('Server');
+            $info = !$info instanceof ErrorInterface ? $info['Server'] ?? $info : ['redis_version' => '2.0'];
+
+            if ($host instanceof Relay) {
+                $prefix = Relay::SCAN_PREFIX & $host->getOption(Relay::OPT_SCAN) ? '' : $host->getOption(Relay::OPT_PREFIX);
+                $prefixLen = \strlen($host->getOption(Relay::OPT_PREFIX) ?? '');
+            } elseif (!$host instanceof \Predis\ClientInterface) {
+                $prefix = \defined('Redis::SCAN_PREFIX') && (\Redis::SCAN_PREFIX & $host->getOption(\Redis::OPT_SCAN)) ? '' : $host->getOption(\Redis::OPT_PREFIX);
+                $prefixLen = \strlen($host->getOption(\Redis::OPT_PREFIX) ?? '');
+            }
+            $pattern = $prefix.$namespace.'*';
+
+            if (!version_compare($info['redis_version'], '2.8', '>=')) {
+                // As documented in Redis documentation (http://redis.io/commands/keys) using KEYS
+                // can hang your server when it is executed against large databases (millions of items).
+                // Whenever you hit this scale, you should really consider upgrading to Redis 2.8 or above.
+                $unlink = version_compare($info['redis_version'], '4.0', '>=') ? 'UNLINK' : 'DEL';
+                $args = $this->redis instanceof \Predis\ClientInterface ? [0, $pattern] : [[$pattern], 0];
+                $cleared = $host->eval("local keys=redis.call('KEYS',ARGV[1]) for i=1,#keys,5000 do redis.call('$unlink',unpack(keys,i,math.min(i+4999,#keys))) end return 1", $args[0], $args[1]) && $cleared;
+                continue;
+            }
+
+            $cursor = null;
+            do {
+                $keys = $host instanceof \Predis\ClientInterface ? $host->scan($cursor ?? 0, 'MATCH', $pattern, 'COUNT', 1000) : $host->scan($cursor, $pattern, 1000);
+                if (isset($keys[1]) && \is_array($keys[1])) {
+                    $cursor = $keys[0];
+                    $keys = $keys[1];
+                }
+                if ($keys) {
+                    if ($prefixLen) {
+                        foreach ($keys as $i => $key) {
+                            $keys[$i] = substr($key, $prefixLen);
+                        }
+                    }
+                    $this->doDelete($keys);
+                }
+            } while ($cursor);
+        }
+
+        return $cleared;
+    }
+
+    protected function doDelete(array $ids): bool
+    {
+        if (!$ids) {
+            return true;
+        }
+
+        if ($this->redis instanceof \Predis\ClientInterface && ($this->redis->getConnection() instanceof ClusterInterface || $this->redis->getConnection() instanceof Predis2ClusterInterface)) {
+            static $del;
+            $del ??= (class_exists(UNLINK::class) ? 'unlink' : 'del');
+
+            $this->pipeline(function () use ($ids, $del) {
+                foreach ($ids as $id) {
+                    yield $del => [$id];
+                }
+            })->rewind();
+        } else {
+            static $unlink = true;
+
+            if ($unlink) {
+                try {
+                    $unlink = false !== $this->redis->unlink($ids);
+                } catch (\Throwable) {
+                    $unlink = false;
+                }
+            }
+
+            if (!$unlink) {
+                $this->redis->del($ids);
+            }
+        }
+
+        return true;
+    }
+
+    protected function doSave(array $values, int $lifetime): array|bool
+    {
+        if (!$values = $this->marshaller->marshall($values, $failed)) {
+            return $failed;
+        }
+
+        $results = $this->pipeline(function () use ($values, $lifetime) {
+            foreach ($values as $id => $value) {
+                if (0 >= $lifetime) {
+                    yield 'set' => [$id, $value];
+                } else {
+                    yield 'setEx' => [$id, $lifetime, $value];
+                }
+            }
+        });
+
+        foreach ($results as $id => $result) {
+            if (true !== $result && (!$result instanceof Status || Status::get('OK') !== $result)) {
+                $failed[] = $id;
+            }
+        }
+
+        return $failed;
+    }
+
+    private function pipeline(\Closure $generator, ?object $redis = null): \Generator
+    {
+        $ids = [];
+        $redis ??= $this->redis;
+
+        if ($redis instanceof \RedisCluster || $redis instanceof RelayCluster || ($redis instanceof \Predis\ClientInterface && ($redis->getConnection() instanceof RedisCluster || $redis->getConnection() instanceof Predis2RedisCluster))) {
+            // phpredis & predis don't support pipelining with RedisCluster
+            // \Relay\Cluster does not support multi with pipeline mode
+            // see https://github.com/phpredis/phpredis/blob/develop/cluster.markdown#pipelining
+            // see https://github.com/nrk/predis/issues/267#issuecomment-123781423
+            $results = [];
+            foreach ($generator() as $command => $args) {
+                $results[] = $redis->{$command}(...$args);
+                $ids[] = 'eval' === $command ? ($redis instanceof \Predis\ClientInterface ? $args[2] : $args[1][0]) : $args[0];
+            }
+        } elseif ($redis instanceof \Predis\ClientInterface) {
+            $results = $redis->pipeline(static function ($redis) use ($generator, &$ids) {
+                foreach ($generator() as $command => $args) {
+                    $redis->{$command}(...$args);
+                    $ids[] = 'eval' === $command ? $args[2] : $args[0];
+                }
+            });
+        } elseif ($redis instanceof \RedisArray) {
+            $connections = $results = [];
+            foreach ($generator() as $command => $args) {
+                $id = 'eval' === $command ? $args[1][0] : $args[0];
+                if (!isset($connections[$h = $redis->_target($id)])) {
+                    $connections[$h] = [$redis->_instance($h), -1];
+                    $connections[$h][0]->multi(\Redis::PIPELINE);
+                }
+                $connections[$h][0]->{$command}(...$args);
+                $results[] = [$h, ++$connections[$h][1]];
+                $ids[] = $id;
+            }
+            foreach ($connections as $h => $c) {
+                $connections[$h] = $c[0]->exec();
+            }
+            foreach ($results as $k => [$h, $c]) {
+                $results[$k] = $connections[$h][$c];
+            }
+        } else {
+            $redis->multi($redis instanceof Relay ? Relay::PIPELINE : \Redis::PIPELINE);
+            foreach ($generator() as $command => $args) {
+                $redis->{$command}(...$args);
+                $ids[] = 'eval' === $command ? $args[1][0] : $args[0];
+            }
+            $results = $redis->exec();
+        }
+
+        if (!$redis instanceof \Predis\ClientInterface && 'eval' === $command && $redis->getLastError()) {
+            $e = $redis instanceof Relay ? new \Relay\Exception($redis->getLastError()) : new \RedisException($redis->getLastError());
+            $results = array_map(fn ($v) => false === $v ? $e : $v, (array) $results);
+        }
+
+        if (\is_bool($results)) {
+            return;
+        }
+
+        foreach ($ids as $k => $id) {
+            yield $id => $results[$k];
+        }
+    }
+
+    private function getHosts(): array
+    {
+        $hosts = [$this->redis];
+        if ($this->redis instanceof \Predis\ClientInterface) {
+            $connection = $this->redis->getConnection();
+            if (($connection instanceof ClusterInterface || $connection instanceof Predis2ClusterInterface) && $connection instanceof \Traversable) {
+                $hosts = [];
+                foreach ($connection as $c) {
+                    $hosts[] = new \Predis\Client($c);
+                }
+            }
+        } elseif ($this->redis instanceof \RedisArray) {
+            $hosts = [];
+            foreach ($this->redis->_hosts() as $host) {
+                $hosts[] = $this->redis->_instance($host);
+            }
+        } elseif ($this->redis instanceof \RedisCluster) {
+            $hosts = [];
+            foreach ($this->redis->_masters() as $host) {
+                $hosts[] = new RedisClusterNodeProxy($host, $this->redis);
+            }
+        }
+
+        return $hosts;
+    }
+
+    private static function filterSslOptions(array $options): array
+    {
+        foreach ($options as $name => $value) {
+            match ($name) {
+                'allow_self_signed', 'capture_peer_cert', 'capture_peer_cert_chain', 'disable_compression', 'SNI_enabled', 'verify_peer', 'verify_peer_name',
+                    => $options[$name] = filter_var($value, \FILTER_VALIDATE_BOOLEAN),
+                default => null,
+            };
+        }
+
+        return $options;
+    }
+}

backend/vendor/symfony/cache/Traits/Relay/Relay20Trait.php

@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits\Relay;
+
+if (version_compare(phpversion('relay'), '0.20.0', '>=')) {
+    /**
+     * @internal
+     */
+    trait Relay20Trait
+    {
+        public function _digest($value): string
+        {
+            return $this->initializeLazyObject()->_digest(...\func_get_args());
+        }
+
+        public function delex($key, $options = null): \Relay\Relay|false|int
+        {
+            return $this->initializeLazyObject()->delex(...\func_get_args());
+        }
+
+        public function digest($key): \Relay\Relay|false|null|string
+        {
+            return $this->initializeLazyObject()->digest(...\func_get_args());
+        }
+
+        public function msetex($kvals, $ttl = null): \Relay\Relay|false|int
+        {
+            return $this->initializeLazyObject()->msetx(...\func_get_args());
+        }
+    }
+} else {
+    /**
+     * @internal
+     */
+    trait Relay20Trait
+    {
+    }
+}

backend/vendor/symfony/cache/Traits/Relay/RelayCluster20Trait.php

@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits\Relay;
+
+if (version_compare(phpversion('relay'), '0.20.0', '>=')) {
+    /**
+     * @internal
+     */
+    trait RelayCluster20Trait
+    {
+        public function _digest($value): string
+        {
+            return $this->initializeLazyObject()->_digest(...\func_get_args());
+        }
+
+        public function delex($key, $options = null): \Relay\Cluster|false|int
+        {
+            return $this->initializeLazyObject()->delex(...\func_get_args());
+        }
+
+        public function digest($key): \Relay\Cluster|false|null|string
+        {
+            return $this->initializeLazyObject()->digest(...\func_get_args());
+        }
+
+        public function wait($key_or_address, $replicas, $timeout): \Relay\Cluster|false|int
+        {
+            return $this->initializeLazyObject()->digest(...\func_get_args());
+        }
+    }
+} else {
+    /**
+     * @internal
+     */
+    trait RelayCluster20Trait
+    {
+    }
+}

backend/vendor/symfony/cache/Traits/ValueWrapper.php

@@ -0,0 +1,81 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * A short namespace-less class to serialize items with metadata.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+class ©
+{
+    private const EXPIRY_OFFSET = 1648206727;
+    private const INT32_MAX = 2147483647;
+
+    public readonly mixed $value;
+    public readonly array $metadata;
+
+    public function __construct(mixed $value, array $metadata)
+    {
+        $this->value = $value;
+        $this->metadata = $metadata;
+    }
+
+    public function __serialize(): array
+    {
+        // pack 31-bits ctime into 14bits
+        $c = $this->metadata['ctime'] ?? 0;
+        $c = match (true) {
+            $c > self::INT32_MAX - 2 => self::INT32_MAX,
+            $c > 0 => 1 + $c,
+            default => 1,
+        };
+        $e = 0;
+        while (!(0x40000000 & $c)) {
+            $c <<= 1;
+            ++$e;
+        }
+        $c = (0x7FE0 & ($c >> 16)) | $e;
+
+        $pack = pack('Vn', (int) (0.1 + ($this->metadata['expiry'] ?: self::INT32_MAX + self::EXPIRY_OFFSET) - self::EXPIRY_OFFSET), $c);
+
+        if (isset($this->metadata['tags'])) {
+            $pack[4] = $pack[4] | "\x80";
+        }
+
+        return [$pack => $this->value] + ($this->metadata['tags'] ?? []);
+    }
+
+    public function __unserialize(array $data): void
+    {
+        $pack = array_key_first($data);
+        $this->value = $data[$pack];
+
+        if ($hasTags = "\x80" === ($pack[4] & "\x80")) {
+            unset($data[$pack]);
+            $pack[4] = $pack[4] & "\x7F";
+        }
+
+        $metadata = unpack('Vexpiry/nctime', $pack);
+        $metadata['expiry'] += self::EXPIRY_OFFSET;
+
+        if (!$metadata['ctime'] = ((0x4000 | $metadata['ctime']) << 16 >> (0x1F & $metadata['ctime'])) - 1) {
+            unset($metadata['ctime']);
+        }
+
+        if ($hasTags) {
+            $metadata['tags'] = $data;
+        }
+
+        $this->metadata = $metadata;
+    }
+}

backend/vendor/symfony/cache/composer.json

@@ -0,0 +1,63 @@
+{
+    "name": "symfony/cache",
+    "type": "library",
+    "description": "Provides extended PSR-6, PSR-16 (and tags) implementations",
+    "keywords": ["caching", "psr6"],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Nicolas Grekas",
+            "email": "p@tchwork.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "provide": {
+        "psr/cache-implementation": "2.0|3.0",
+        "psr/simple-cache-implementation": "1.0|2.0|3.0",
+        "symfony/cache-implementation": "1.1|2.0|3.0"
+    },
+    "require": {
+        "php": ">=8.2",
+        "psr/cache": "^2.0|^3.0",
+        "psr/log": "^1.1|^2|^3",
+        "symfony/cache-contracts": "^3.6",
+        "symfony/deprecation-contracts": "^2.5|^3",
+        "symfony/service-contracts": "^2.5|^3",
+        "symfony/var-exporter": "^6.4|^7.0|^8.0"
+    },
+    "require-dev": {
+        "cache/integration-tests": "dev-master",
+        "doctrine/dbal": "^3.6|^4",
+        "predis/predis": "^1.1|^2.0",
+        "psr/simple-cache": "^1.0|^2.0|^3.0",
+        "symfony/clock": "^6.4|^7.0|^8.0",
+        "symfony/config": "^6.4|^7.0|^8.0",
+        "symfony/dependency-injection": "^6.4|^7.0|^8.0",
+        "symfony/filesystem": "^6.4|^7.0|^8.0",
+        "symfony/http-kernel": "^6.4|^7.0|^8.0",
+        "symfony/messenger": "^6.4|^7.0|^8.0",
+        "symfony/var-dumper": "^6.4|^7.0|^8.0"
+    },
+    "conflict": {
+        "ext-redis": "<6.1",
+        "ext-relay": "<0.12.1",
+        "doctrine/dbal": "<3.6",
+        "symfony/dependency-injection": "<6.4",
+        "symfony/http-kernel": "<6.4",
+        "symfony/var-dumper": "<6.4"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Component\\Cache\\": "" },
+        "classmap": [
+            "Traits/ValueWrapper.php"
+        ],
+        "exclude-from-classmap": [
+            "/Tests/"
+        ]
+    },
+    "minimum-stability": "dev"
+}

backend/vendor/symfony/config/Builder/ClassBuilder.php

@@ -0,0 +1,178 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+use Symfony\Component\Config\Definition\NodeInterface;
+
+/**
+ * Build PHP classes to generate config.
+ *
+ * @internal
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class ClassBuilder
+{
+    private string $name;
+
+    /** @var Property[] */
+    private array $properties = [];
+
+    /** @var Method[] */
+    private array $methods = [];
+    private array $require = [];
+    private array $use = [];
+    private array $implements = [];
+    private bool $allowExtraKeys = false;
+
+    public function __construct(
+        private string $namespace,
+        string $name,
+        private NodeInterface $node,
+        public readonly bool $isRoot = false,
+    ) {
+        $this->name = ucfirst($this->camelCase($name)).'Config';
+    }
+
+    public function getDirectory(): string
+    {
+        return str_replace('\\', \DIRECTORY_SEPARATOR, $this->namespace);
+    }
+
+    public function getFilename(): string
+    {
+        return $this->name.'.php';
+    }
+
+    public function build(): string
+    {
+        $rootPath = explode(\DIRECTORY_SEPARATOR, $this->getDirectory());
+        $require = '';
+        foreach ($this->require as $class) {
+            // figure out relative path.
+            $path = explode(\DIRECTORY_SEPARATOR, $class->getDirectory());
+            $path[] = $class->getFilename();
+            foreach ($rootPath as $key => $value) {
+                if ($path[$key] !== $value) {
+                    break;
+                }
+                unset($path[$key]);
+            }
+            $require .= \sprintf('require_once __DIR__.\DIRECTORY_SEPARATOR.\'%s\';', implode('\'.\DIRECTORY_SEPARATOR.\'', $path))."\n";
+        }
+        $use = $require ? "\n" : '';
+        foreach (array_keys($this->use) as $statement) {
+            $use .= \sprintf('use %s;', $statement)."\n";
+        }
+
+        $implements = $this->implements ? 'implements '.implode(', ', $this->implements) : '';
+        $body = '';
+        foreach ($this->properties as $property) {
+            $body .= '    '.$property->getContent()."\n";
+        }
+        foreach ($this->methods as $method) {
+            $lines = explode("\n", $method->getContent());
+            foreach ($lines as $line) {
+                $body .= ($line ? '    '.$line : '')."\n";
+            }
+        }
+
+        return strtr('<?php
+
+namespace NAMESPACE;
+
+REQUIREUSE
+/**
+ * This class is automatically generated to help in creating a config.
+ */
+class CLASS IMPLEMENTS
+{
+BODY
+}
+', ['NAMESPACE' => $this->namespace, 'REQUIRE' => $require, 'USE' => $use, 'CLASS' => $this->getName(), 'IMPLEMENTS' => $implements, 'BODY' => $body]);
+    }
+
+    public function addRequire(self $class): void
+    {
+        $this->require[] = $class;
+    }
+
+    public function addUse(string $class): void
+    {
+        $this->use[$class] = true;
+    }
+
+    public function addImplements(string $interface): void
+    {
+        $this->implements[] = '\\'.ltrim($interface, '\\');
+    }
+
+    public function addMethod(string $name, string $body, array $params = []): void
+    {
+        $this->methods[] = new Method(strtr($body, ['NAME' => $this->camelCase($name)] + $params));
+    }
+
+    public function addProperty(string $name, ?string $classType = null, ?string $defaultValue = null): Property
+    {
+        $property = new Property($name, '_' !== $name[0] ? $this->camelCase($name) : $name);
+        if (null !== $classType) {
+            $property->setType($classType);
+        }
+        $this->properties[] = $property;
+        $defaultValue = null !== $defaultValue ? \sprintf(' = %s', $defaultValue) : '';
+        $property->setContent(\sprintf('private $%s%s;', $property->getName(), $defaultValue));
+
+        return $property;
+    }
+
+    public function getProperties(): array
+    {
+        return $this->properties;
+    }
+
+    private function camelCase(string $input): string
+    {
+        $output = lcfirst(str_replace(' ', '', ucwords(str_replace('_', ' ', $input))));
+
+        return preg_replace('#\W#', '', $output);
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function getNamespace(): string
+    {
+        return $this->namespace;
+    }
+
+    public function getFqcn(): string
+    {
+        return '\\'.$this->namespace.'\\'.$this->name;
+    }
+
+    public function setAllowExtraKeys(bool $allowExtraKeys): void
+    {
+        $this->allowExtraKeys = $allowExtraKeys;
+    }
+
+    public function shouldAllowExtraKeys(): bool
+    {
+        return $this->allowExtraKeys;
+    }
+
+    public function getNode(): NodeInterface
+    {
+        return $this->node;
+    }
+}

backend/vendor/symfony/config/Builder/ConfigBuilderGenerator.php

@@ -0,0 +1,632 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+use Symfony\Component\Config\Definition\ArrayNode;
+use Symfony\Component\Config\Definition\BaseNode;
+use Symfony\Component\Config\Definition\BooleanNode;
+use Symfony\Component\Config\Definition\Builder\ExprBuilder;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+use Symfony\Component\Config\Definition\EnumNode;
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\FloatNode;
+use Symfony\Component\Config\Definition\IntegerNode;
+use Symfony\Component\Config\Definition\NodeInterface;
+use Symfony\Component\Config\Definition\PrototypedArrayNode;
+use Symfony\Component\Config\Definition\ScalarNode;
+use Symfony\Component\Config\Definition\VariableNode;
+use Symfony\Component\Config\Loader\ParamConfigurator;
+
+/**
+ * Generate ConfigBuilders to help create valid config.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ *
+ * @deprecated since Symfony 7.4
+ */
+class ConfigBuilderGenerator implements ConfigBuilderGeneratorInterface
+{
+    /**
+     * @var ClassBuilder[]
+     */
+    private array $classes = [];
+
+    public function __construct(
+        private string $outputDir,
+    ) {
+    }
+
+    /**
+     * @return \Closure that will return the root config class
+     */
+    public function build(ConfigurationInterface $configuration): \Closure
+    {
+        $this->classes = [];
+
+        $rootNode = $configuration->getConfigTreeBuilder()->buildTree();
+        $rootClass = new ClassBuilder('Symfony\\Config', $rootNode->getName(), $rootNode, true);
+
+        $path = $this->getFullPath($rootClass);
+        if (!is_file($path)) {
+            // Generate the class if the file not exists
+            $this->classes[] = $rootClass;
+            $this->buildNode($rootNode, $rootClass, $this->getSubNamespace($rootClass));
+            $rootClass->addImplements(ConfigBuilderInterface::class);
+            $rootClass->addMethod('getExtensionAlias', '
+public function NAME(): string
+{
+    return \'ALIAS\';
+}', ['ALIAS' => $rootNode->getPath()]);
+
+            $this->writeClasses();
+        }
+
+        return static function () use ($path, $rootClass) {
+            require_once $path;
+            $className = $rootClass->getFqcn();
+
+            return new $className();
+        };
+    }
+
+    private function getFullPath(ClassBuilder $class): string
+    {
+        $directory = $this->outputDir.\DIRECTORY_SEPARATOR.$class->getDirectory();
+        if (!is_dir($directory)) {
+            @mkdir($directory, 0o777, true);
+        }
+
+        return $directory.\DIRECTORY_SEPARATOR.$class->getFilename();
+    }
+
+    private function writeClasses(): void
+    {
+        foreach ($this->classes as $class) {
+            $this->buildConstructor($class, $class->getNode());
+            $this->buildToArray($class);
+            if ($class->getProperties()) {
+                $class->addProperty('_usedProperties', null, '[]');
+            }
+            if ($class->isRoot) {
+                $class->addProperty('_hasDeprecatedCalls', null, 'false');
+            }
+            $this->buildSetExtraKey($class);
+
+            file_put_contents($this->getFullPath($class), $class->build());
+        }
+
+        $this->classes = [];
+    }
+
+    private function buildNode(NodeInterface $node, ClassBuilder $class, string $namespace): void
+    {
+        if (!$node instanceof ArrayNode) {
+            throw new \LogicException('The node was expected to be an ArrayNode. This Configuration includes an edge case not supported yet.');
+        }
+
+        foreach ($node->getChildren() as $child) {
+            match (true) {
+                $child instanceof ScalarNode => $this->handleScalarNode($child, $class),
+                $child instanceof PrototypedArrayNode => $this->handlePrototypedArrayNode($child, $class, $namespace),
+                $child instanceof VariableNode => $this->handleVariableNode($child, $class),
+                $child instanceof ArrayNode => $this->handleArrayNode($child, $class, $namespace),
+                default => throw new \RuntimeException(\sprintf('Unknown node "%s".', get_debug_type($child))),
+            };
+        }
+    }
+
+    private function handleArrayNode(ArrayNode $node, ClassBuilder $class, string $namespace): void
+    {
+        $childClass = new ClassBuilder($namespace, $node->getName(), $node);
+        $childClass->setAllowExtraKeys($node->shouldIgnoreExtraKeys());
+        $class->addRequire($childClass);
+        $this->classes[] = $childClass;
+
+        $nodeTypes = $this->getParameterTypes($node);
+        $paramType = implode('|', $nodeTypes);
+        $acceptScalar = 'array' !== $paramType;
+
+        $comment = $this->getComment($node);
+        if ($acceptScalar) {
+            $comment = \sprintf(" * @template TValue of %s\n * @param TValue \$value\n%s", $paramType, $comment);
+            $comment .= \sprintf(' * @return %s|$this'."\n", $childClass->getFqcn());
+            $comment .= \sprintf(' * @psalm-return (TValue is array ? %s : static)'."\n", $childClass->getFqcn());
+        }
+        if ($class->isRoot) {
+            $comment .= " * @deprecated since Symfony 7.4\n";
+        }
+        if ('' !== $comment) {
+            $comment = "/**\n$comment */\n";
+        }
+
+        $property = $class->addProperty(
+            $node->getName(),
+            $childClass->getFqcn().($acceptScalar ? '|scalar' : '')
+        );
+        $body = $acceptScalar ? '
+COMMENTpublic function NAME(PARAM_TYPE $value = []): CLASS|static
+{DEPRECATED_BODY
+    if (!\is_array($value)) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY = $value;
+
+        return $this;
+    }
+
+    if (!$this->PROPERTY instanceof CLASS) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY = new CLASS($value);
+    } elseif (0 < \func_num_args()) {
+        throw new InvalidConfigurationException(\'The node created by "NAME()" has already been initialized. You cannot pass values the second time you call NAME().\');
+    }
+
+    return $this->PROPERTY;
+}' : '
+COMMENTpublic function NAME(array $value = []): CLASS
+{DEPRECATED_BODY
+    if (null === $this->PROPERTY) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY = new CLASS($value);
+    } elseif (0 < \func_num_args()) {
+        throw new InvalidConfigurationException(\'The node created by "NAME()" has already been initialized. You cannot pass values the second time you call NAME().\');
+    }
+
+    return $this->PROPERTY;
+}';
+        $class->addUse(InvalidConfigurationException::class);
+        $class->addMethod($node->getName(), $body, [
+            'DEPRECATED_BODY' => $class->isRoot ? "\n    \$this->_hasDeprecatedCalls = true;" : '',
+            'COMMENT' => $comment,
+            'PROPERTY' => $property->getName(),
+            'CLASS' => $childClass->getFqcn(),
+            'PARAM_TYPE' => $paramType,
+        ]);
+
+        $this->buildNode($node, $childClass, $this->getSubNamespace($childClass));
+    }
+
+    private function handleVariableNode(VariableNode $node, ClassBuilder $class): void
+    {
+        $comment = $this->getComment($node);
+        $property = $class->addProperty($node->getName());
+        $class->addUse(ParamConfigurator::class);
+
+        $body = '
+/**
+COMMENT *
+ * @return $this
+ *DEPRECATED_ANNOTATION/
+public function NAME(mixed $valueDEFAULT): static
+{DEPRECATED_BODY
+    $this->_usedProperties[\'PROPERTY\'] = true;
+    $this->PROPERTY = $value;
+
+    return $this;
+}';
+        $class->addMethod($node->getName(), $body, [
+            'DEPRECATED_BODY' => $class->isRoot ? "\n    \$this->_hasDeprecatedCalls = true;" : '',
+            'DEPRECATED_ANNOTATION' => $class->isRoot ? " @deprecated since Symfony 7.4\n *" : '',
+            'PROPERTY' => $property->getName(),
+            'COMMENT' => $comment,
+            'DEFAULT' => $node->hasDefaultValue() ? ' = '.var_export($node->getDefaultValue(), true) : '',
+        ]);
+    }
+
+    private function handlePrototypedArrayNode(PrototypedArrayNode $node, ClassBuilder $class, string $namespace): void
+    {
+        $name = $this->getSingularName($node);
+        $prototype = $node->getPrototype();
+        $methodName = $name;
+
+        $nodeParameterTypes = $this->getParameterTypes($node);
+        $prototypeParameterTypes = $this->getParameterTypes($prototype);
+        $noKey = null === $key = $node->getKeyAttribute();
+        $acceptScalar = ['array'] !== $nodeParameterTypes || ['array'] !== $prototypeParameterTypes;
+
+        if (!$prototype instanceof ArrayNode || ($prototype instanceof PrototypedArrayNode && $prototype->getPrototype() instanceof ScalarNode)) {
+            $class->addUse(ParamConfigurator::class);
+            $property = $class->addProperty($node->getName());
+            if ($noKey) {
+                // This is an array of values; don't use singular name
+                $nodeTypesWithoutArray = array_diff($nodeParameterTypes, ['array']);
+                $body = '
+/**
+ * @param ParamConfigurator|list<ParamConfigurator|PROTOTYPE_TYPE>EXTRA_TYPE $value
+ *
+ * @return $this
+ *DEPRECATED_ANNOTATION/
+public function NAME(PARAM_TYPE $value): static
+{DEPRECATED_BODY
+    $this->_usedProperties[\'PROPERTY\'] = true;
+    $this->PROPERTY = $value;
+
+    return $this;
+}';
+
+                $class->addMethod($node->getName(), $body, [
+                    'DEPRECATED_BODY' => $class->isRoot ? "\n    \$this->_hasDeprecatedCalls = true;" : '',
+                    'DEPRECATED_ANNOTATION' => $class->isRoot ? " @deprecated since Symfony 7.4\n *" : '',
+                    'PROPERTY' => $property->getName(),
+                    'PROTOTYPE_TYPE' => implode('|', $prototypeParameterTypes),
+                    'EXTRA_TYPE' => $nodeTypesWithoutArray ? '|'.implode('|', $nodeTypesWithoutArray) : '',
+                    'PARAM_TYPE' => ['mixed'] !== $nodeParameterTypes ? 'ParamConfigurator|'.implode('|', $nodeParameterTypes) : 'mixed',
+                ]);
+            } else {
+                $body = '
+/**
+ * @return $this
+ *DEPRECATED_ANNOTATION/
+public function NAME(string $VAR, TYPE $VALUE): static
+{DEPRECATED_BODY
+    $this->_usedProperties[\'PROPERTY\'] = true;
+    $this->PROPERTY[$VAR] = $VALUE;
+
+    return $this;
+}';
+
+                $class->addMethod($methodName, $body, [
+                    'DEPRECATED_BODY' => $class->isRoot ? "\n    \$this->_hasDeprecatedCalls = true;" : '',
+                    'DEPRECATED_ANNOTATION' => $class->isRoot ? " @deprecated since Symfony 7.4\n *" : '',
+                    'PROPERTY' => $property->getName(),
+                    'TYPE' => ['mixed'] !== $prototypeParameterTypes ? 'ParamConfigurator|'.implode('|', $prototypeParameterTypes) : 'mixed',
+                    'VAR' => '' === $key ? 'key' : $key,
+                    'VALUE' => 'value' === $key ? 'data' : 'value',
+                ]);
+            }
+
+            return;
+        }
+
+        $childClass = new ClassBuilder($namespace, $name, $prototype);
+        if ($prototype instanceof ArrayNode) {
+            $childClass->setAllowExtraKeys($prototype->shouldIgnoreExtraKeys());
+        }
+        $class->addRequire($childClass);
+        $this->classes[] = $childClass;
+
+        $property = $class->addProperty(
+            $node->getName(),
+            $childClass->getFqcn().'[]'.($acceptScalar ? '|scalar' : '')
+        );
+
+        $paramType = implode('|', $noKey ? $nodeParameterTypes : $prototypeParameterTypes);
+        $acceptScalar = 'array' !== $paramType;
+
+        $comment = $this->getComment($node);
+        if ($acceptScalar) {
+            $comment = \sprintf(" * @template TValue of %s\n * @param TValue \$value\n%s", $paramType, $comment);
+            $comment .= \sprintf(' * @return %s|$this'."\n", $childClass->getFqcn());
+            $comment .= \sprintf(' * @psalm-return (TValue is array ? %s : static)'."\n", $childClass->getFqcn());
+        }
+        if ($class->isRoot) {
+            $comment .= " * @deprecated since Symfony 7.4\n";
+        }
+        if ('' !== $comment) {
+            $comment = "/**\n$comment */\n";
+        }
+
+        if ($noKey) {
+            $body = $acceptScalar ? '
+COMMENTpublic function NAME(PARAM_TYPE $value = []): CLASS|static
+{DEPRECATED_BODY
+    $this->_usedProperties[\'PROPERTY\'] = true;
+    if (!\is_array($value)) {
+        $this->PROPERTY[] = $value;
+
+        return $this;
+    }
+
+    return $this->PROPERTY[] = new CLASS($value);
+}' : '
+COMMENTpublic function NAME(array $value = []): CLASS
+{DEPRECATED_BODY
+    $this->_usedProperties[\'PROPERTY\'] = true;
+
+    return $this->PROPERTY[] = new CLASS($value);
+}';
+            $class->addMethod($methodName, $body, [
+                'DEPRECATED_BODY' => $class->isRoot ? "\n    \$this->_hasDeprecatedCalls = true;" : '',
+                'COMMENT' => $comment,
+                'PROPERTY' => $property->getName(),
+                'CLASS' => $childClass->getFqcn(),
+                'PARAM_TYPE' => $paramType,
+            ]);
+        } else {
+            $body = $acceptScalar ? '
+COMMENTpublic function NAME(string $VAR, PARAM_TYPE $VALUE = []): CLASS|static
+{DEPRECATED_BODY
+    if (!\is_array($VALUE)) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY[$VAR] = $VALUE;
+
+        return $this;
+    }
+
+    if (!isset($this->PROPERTY[$VAR]) || !$this->PROPERTY[$VAR] instanceof CLASS) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY[$VAR] = new CLASS($VALUE);
+    } elseif (1 < \func_num_args()) {
+        throw new InvalidConfigurationException(\'The node created by "NAME()" has already been initialized. You cannot pass values the second time you call NAME().\');
+    }
+
+    return $this->PROPERTY[$VAR];
+}' : '
+COMMENTpublic function NAME(string $VAR, array $VALUE = []): CLASS
+{DEPRECATED_BODY
+    if (!isset($this->PROPERTY[$VAR])) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY[$VAR] = new CLASS($VALUE);
+    } elseif (1 < \func_num_args()) {
+        throw new InvalidConfigurationException(\'The node created by "NAME()" has already been initialized. You cannot pass values the second time you call NAME().\');
+    }
+
+    return $this->PROPERTY[$VAR];
+}';
+            $class->addUse(InvalidConfigurationException::class);
+            $class->addMethod($methodName, str_replace('$value', '$VAR', $body), [
+                'DEPRECATED_BODY' => $class->isRoot ? "\n    \$this->_hasDeprecatedCalls = true;" : '',
+                'COMMENT' => $comment,
+                'PROPERTY' => $property->getName(),
+                'CLASS' => $childClass->getFqcn(),
+                'VAR' => '' === $key ? 'key' : $key,
+                'VALUE' => 'value' === $key ? 'data' : 'value',
+                'PARAM_TYPE' => $paramType,
+            ]);
+        }
+
+        $this->buildNode($prototype, $childClass, $namespace.'\\'.$childClass->getName());
+    }
+
+    private function handleScalarNode(ScalarNode $node, ClassBuilder $class): void
+    {
+        $comment = $this->getComment($node);
+        $property = $class->addProperty($node->getName());
+        $class->addUse(ParamConfigurator::class);
+
+        $body = '
+/**
+COMMENT * @return $this
+ *DEPRECATED_ANNOTATION/
+public function NAME($value): static
+{DEPRECATED_BODY
+    $this->_usedProperties[\'PROPERTY\'] = true;
+    $this->PROPERTY = $value;
+
+    return $this;
+}';
+
+        $class->addMethod($node->getName(), $body, [
+            'DEPRECATED_BODY' => $class->isRoot ? "\n    \$this->_hasDeprecatedCalls = true;" : '',
+            'DEPRECATED_ANNOTATION' => $class->isRoot ? " @deprecated since Symfony 7.4\n *" : '',
+            'PROPERTY' => $property->getName(),
+            'COMMENT' => $comment,
+        ]);
+    }
+
+    private function getParameterTypes(NodeInterface $node): array
+    {
+        $paramTypes = [];
+        if ($node instanceof BaseNode) {
+            foreach ($node->getNormalizedTypes() as $type) {
+                if (ExprBuilder::TYPE_ANY === $type) {
+                    return ['mixed'];
+                }
+
+                $paramTypes[] = match ($type) {
+                    ExprBuilder::TYPE_STRING => 'string',
+                    ExprBuilder::TYPE_NULL => 'null',
+                    ExprBuilder::TYPE_ARRAY => 'array',
+                    ExprBuilder::TYPE_BOOL => 'bool',
+                    ExprBuilder::TYPE_BACKED_ENUM => '\BackedEnum',
+                    ExprBuilder::TYPE_INT => 'int',
+                };
+            }
+        }
+
+        if ($node instanceof BooleanNode) {
+            $paramTypes[] = 'bool';
+        } elseif ($node instanceof IntegerNode) {
+            $paramTypes[] = 'int';
+        } elseif ($node instanceof FloatNode) {
+            $paramTypes[] = 'float';
+        } elseif ($node instanceof ArrayNode) {
+            $paramTypes[] = 'array';
+        } else {
+            return ['mixed'];
+        }
+
+        return array_unique($paramTypes);
+    }
+
+    private function getComment(BaseNode $node): string
+    {
+        $comment = '';
+        if ('' !== $info = (string) $node->getInfo()) {
+            $comment .= $info."\n";
+        }
+
+        if (!$node instanceof ArrayNode) {
+            foreach ((array) ($node->getExample() ?? []) as $example) {
+                $comment .= '@example '.$example."\n";
+            }
+
+            if ('' !== $default = $node->getDefaultValue()) {
+                $comment .= '@default '.(null === $default ? 'null' : var_export($default, true))."\n";
+            }
+
+            if ($node instanceof EnumNode) {
+                $comment .= \sprintf('@param ParamConfigurator|%s $value', implode('|', array_unique(array_map(fn ($a) => !$a instanceof \UnitEnum ? var_export($a, true) : '\\'.ltrim(var_export($a, true), '\\'), $node->getValues()))))."\n";
+            } else {
+                $parameterTypes = $this->getParameterTypes($node);
+                $comment .= '@param ParamConfigurator|'.implode('|', $parameterTypes).' $value'."\n";
+            }
+        } else {
+            foreach ((array) ($node->getExample() ?? []) as $example) {
+                $comment .= '@example '.json_encode($example)."\n";
+            }
+
+            if ($node->hasDefaultValue() && [] != $default = $node->getDefaultValue()) {
+                $comment .= '@default '.json_encode($default)."\n";
+            }
+        }
+
+        if ($node->isDeprecated()) {
+            $comment .= '@deprecated '.$node->getDeprecationMessage()."\n";
+        }
+
+        return $comment ? ' * '.str_replace("\n", "\n * ", rtrim($comment, "\n"))."\n" : '';
+    }
+
+    /**
+     * Pick a good singular name.
+     */
+    private function getSingularName(PrototypedArrayNode $node): string
+    {
+        $name = $node->getName();
+        if (!str_ends_with($name, 's')) {
+            return $name;
+        }
+
+        $parent = $node->getParent();
+        $mappings = $parent instanceof ArrayNode ? $parent->getXmlRemappings() : [];
+        foreach ($mappings as $map) {
+            if ($map[1] === $name) {
+                $name = $map[0];
+                break;
+            }
+        }
+
+        return $name;
+    }
+
+    private function buildToArray(ClassBuilder $class): void
+    {
+        $body = '$output = [];';
+        foreach ($class->getProperties() as $p) {
+            $code = '$this->PROPERTY';
+            if (null !== $p->getType()) {
+                if ($p->isArray()) {
+                    $code = $p->areScalarsAllowed()
+                        ? 'array_map(fn ($v) => $v instanceof CLASS ? $v->toArray() : $v, $this->PROPERTY)'
+                        : 'array_map(fn ($v) => $v->toArray(), $this->PROPERTY)'
+                    ;
+                } else {
+                    $code = $p->areScalarsAllowed()
+                        ? '$this->PROPERTY instanceof CLASS ? $this->PROPERTY->toArray() : $this->PROPERTY'
+                        : '$this->PROPERTY->toArray()'
+                    ;
+                }
+            }
+
+            $body .= strtr('
+    if (isset($this->_usedProperties[\'PROPERTY\'])) {
+        $output[\'ORIG_NAME\'] = '.$code.';
+    }', ['PROPERTY' => $p->getName(), 'ORIG_NAME' => $p->getOriginalName(), 'CLASS' => $p->getType()]);
+        }
+
+        $extraKeys = $class->shouldAllowExtraKeys() ? ' + $this->_extraKeys' : '';
+
+        if ($class->isRoot) {
+            $body .= "
+    if (\$this->_hasDeprecatedCalls) {
+        trigger_deprecation('symfony/config', '7.4', 'Calling any fluent method on \"%s\" is deprecated; pass the configuration to the constructor instead.', \$this::class);
+    }";
+        }
+
+        $class->addMethod('toArray', '
+public function NAME(): array
+{
+    '.$body.'
+
+    return $output'.$extraKeys.';
+}');
+    }
+
+    private function buildConstructor(ClassBuilder $class, NodeInterface $node): void
+    {
+        $body = '';
+        foreach ($class->getProperties() as $p) {
+            $code = '$config[\'ORIG_NAME\']';
+            if (null !== $p->getType()) {
+                if ($p->isArray()) {
+                    $code = $p->areScalarsAllowed()
+                        ? 'array_map(fn ($v) => \is_array($v) ? new '.$p->getType().'($v) : $v, $config[\'ORIG_NAME\'])'
+                        : 'array_map(fn ($v) => new '.$p->getType().'($v), $config[\'ORIG_NAME\'])'
+                    ;
+                } else {
+                    $code = $p->areScalarsAllowed()
+                        ? '\is_array($config[\'ORIG_NAME\']) ? new '.$p->getType().'($config[\'ORIG_NAME\']) : $config[\'ORIG_NAME\']'
+                        : 'new '.$p->getType().'($config[\'ORIG_NAME\'])'
+                    ;
+                }
+            }
+
+            $body .= strtr('
+    if (array_key_exists(\'ORIG_NAME\', $config)) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY = '.$code.';
+        unset($config[\'ORIG_NAME\']);
+    }
+', ['PROPERTY' => $p->getName(), 'ORIG_NAME' => $p->getOriginalName()]);
+        }
+
+        if ($class->shouldAllowExtraKeys()) {
+            $body .= '
+    $this->_extraKeys = $config;
+';
+        } else {
+            $body .= '
+    if ($config) {
+        throw new InvalidConfigurationException(sprintf(\'The following keys are not supported by "%s": \', __CLASS__).implode(\', \', array_keys($config)));
+    }';
+
+            $class->addUse(InvalidConfigurationException::class);
+        }
+
+        $class->addMethod('__construct', '
+public function __construct(array $config = [])
+{'.$body.'
+}');
+    }
+
+    private function buildSetExtraKey(ClassBuilder $class): void
+    {
+        if (!$class->shouldAllowExtraKeys()) {
+            return;
+        }
+
+        $class->addUse(ParamConfigurator::class);
+
+        $class->addProperty('_extraKeys');
+
+        $class->addMethod('set', '
+/**
+ * @param ParamConfigurator|mixed $value
+ *
+ * @return $this
+ *DEPRECATED_ANNOTATION/
+public function NAME(string $key, mixed $value): static
+{DEPRECATED_BODY
+    $this->_extraKeys[$key] = $value;
+
+    return $this;
+}', [
+            'DEPRECATED_BODY' => $class->isRoot ? "\n    \$this->_hasDeprecatedCalls = true;" : '',
+            'DEPRECATED_ANNOTATION' => $class->isRoot ? " @deprecated since Symfony 7.4\n *" : '',
+        ]);
+    }
+
+    private function getSubNamespace(ClassBuilder $rootClass): string
+    {
+        return \sprintf('%s\\%s', $rootClass->getNamespace(), substr($rootClass->getName(), 0, -6));
+    }
+}

backend/vendor/symfony/config/Builder/ConfigBuilderGeneratorInterface.php

@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+
+/**
+ * Generates ConfigBuilders to help create valid config.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ *
+ * @deprecated since Symfony 7.4
+ */
+interface ConfigBuilderGeneratorInterface
+{
+    /**
+     * @return \Closure that will return the root config class
+     */
+    public function build(ConfigurationInterface $configuration): \Closure;
+}

backend/vendor/symfony/config/Builder/ConfigBuilderInterface.php

@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+/**
+ * A ConfigBuilder provides helper methods to build a large complex array.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ *
+ * @deprecated since Symfony 7.4
+ */
+interface ConfigBuilderInterface
+{
+    /**
+     * Gets all configuration represented as an array.
+     */
+    public function toArray(): array;
+
+    /**
+     * Gets the alias for the extension which config we are building.
+     */
+    public function getExtensionAlias(): string;
+}

backend/vendor/symfony/config/Builder/Method.php

@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+/**
+ * Represents a method when building classes.
+ *
+ * @internal
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class Method
+{
+    public function __construct(
+        private string $content,
+    ) {
+    }
+
+    public function getContent(): string
+    {
+        return $this->content;
+    }
+}

backend/vendor/symfony/config/Builder/Property.php

@@ -0,0 +1,84 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+/**
+ * Represents a property when building classes.
+ *
+ * @internal
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class Property
+{
+    private bool $array = false;
+    private bool $scalarsAllowed = false;
+    private ?string $type = null;
+    private ?string $content = null;
+
+    public function __construct(
+        private string $originalName,
+        private string $name,
+    ) {
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function getOriginalName(): string
+    {
+        return $this->originalName;
+    }
+
+    public function setType(string $type): void
+    {
+        $this->array = false;
+        $this->type = $type;
+
+        if (str_ends_with($type, '|scalar')) {
+            $this->scalarsAllowed = true;
+            $this->type = $type = substr($type, 0, -7);
+        }
+
+        if (str_ends_with($type, '[]')) {
+            $this->array = true;
+            $this->type = substr($type, 0, -2);
+        }
+    }
+
+    public function getType(): ?string
+    {
+        return $this->type;
+    }
+
+    public function getContent(): ?string
+    {
+        return $this->content;
+    }
+
+    public function setContent(string $content): void
+    {
+        $this->content = $content;
+    }
+
+    public function isArray(): bool
+    {
+        return $this->array;
+    }
+
+    public function areScalarsAllowed(): bool
+    {
+        return $this->scalarsAllowed;
+    }
+}

backend/vendor/symfony/config/CHANGELOG.md

@@ -0,0 +1,195 @@
+CHANGELOG
+=========
+
+7.4
+---
+
+ * Add TagAwareAdapterInterface to NullAdapter
+ * Add argument `$singular` to `NodeBuilder::arrayNode()` to decouple plurals/singulars from XML
+ * Add support for `defaultNull()` on `ArrayNodeDefinition`
+ * Add `ArrayNodeDefinition::acceptAndWrap()` to list alternative types that should be accepted and wrapped in an array
+ * Add array-shapes to generated config builders
+ * Deprecate accessing the internal scope of the loader in PHP config files, use only its public API instead
+ * Deprecate setting a default value to a node that is required, and vice versa
+ * Deprecate fluent config builders, return PHP arrays from your config instead
+
+7.3
+---
+
+ * Add `ExprBuilder::ifFalse()`
+ * Add support for info on `ArrayNodeDefinition::canBeEnabled()` and `ArrayNodeDefinition::canBeDisabled()`
+ * Allow using an enum FQCN with `EnumNode`
+ * Add `NodeDefinition::docUrl()`
+
+7.2
+---
+
+ * Add `#[WhenNot]` attribute to prevent service from being registered in a specific environment
+ * Generate a meta file in JSON format for resource tracking
+ * Add `SkippingResourceChecker`
+ * Add support for `defaultNull()` on `BooleanNodeDefinition`
+ * Add `StringNode` and `StringNodeDefinition`
+ * Add `ArrayNodeDefinition::stringPrototype()` method
+ * Add `NodeBuilder::stringNode()` method
+
+7.1
+---
+
+ * Allow custom meta location in `ResourceCheckerConfigCache`
+ * Allow custom meta location in `ConfigCache`
+
+7.0
+---
+
+ * Require explicit argument when calling `NodeBuilder::setParent()`
+
+6.3
+---
+
+ * Allow enum values in `EnumNode`
+
+6.2
+---
+
+ * Deprecate calling `NodeBuilder::setParent()` without any arguments
+ * Add a more accurate typehint in generated PHP config
+
+6.1
+---
+
+ * Allow using environment variables in `EnumNode`
+ * Add Node's information in generated Config
+ * Add `DefinitionFileLoader` class to load a TreeBuilder definition from an external file
+ * Add `DefinitionConfigurator` helper
+
+6.0
+---
+
+ * Remove `BaseNode::getDeprecationMessage()`
+
+5.3.0
+-----
+
+ * Add support for generating `ConfigBuilder` for extensions
+
+5.1.0
+-----
+
+ * updated the signature of method `NodeDefinition::setDeprecated()` to `NodeDefinition::setDeprecation(string $package, string $version, string $message)`
+ * updated the signature of method `BaseNode::setDeprecated()` to `BaseNode::setDeprecation(string $package, string $version, string $message)`
+ * deprecated passing a null message to `BaseNode::setDeprecated()` to un-deprecate a node
+ * deprecated `BaseNode::getDeprecationMessage()`, use `BaseNode::getDeprecation()` instead
+
+5.0.0
+-----
+
+ * Dropped support for constructing a `TreeBuilder` without passing root node information.
+ * Removed the `root()` method in `TreeBuilder`, pass the root node information to the constructor instead
+ * Added method `getChildNodeDefinitions()` to ParentNodeDefinitionInterface
+ * Removed `FileLoaderLoadException`, use `LoaderLoadException` instead
+
+4.4.0
+-----
+
+ * added a way to exclude patterns of resources from being imported by the `import()` method
+
+4.3.0
+-----
+
+ * deprecated using environment variables with `cannotBeEmpty()` if the value is validated with `validate()`
+ * made `Resource\*` classes final and not implement `Serializable` anymore
+ * deprecated the `root()` method in `TreeBuilder`, pass the root node information to the constructor instead
+
+4.2.0
+-----
+
+ * deprecated constructing a `TreeBuilder` without passing root node information
+ * renamed `FileLoaderLoadException` to `LoaderLoadException`
+
+4.1.0
+-----
+
+ * added `setPathSeparator` method to `NodeBuilder` class
+ * added third `$pathSeparator` constructor argument to `BaseNode`
+ * the `Processor` class has been made final
+
+4.0.0
+-----
+
+ * removed `ConfigCachePass`
+
+3.4.0
+-----
+
+ * added `setDeprecated()` method to indicate a deprecated node
+ * added `XmlUtils::parse()` method to parse an XML string
+ * deprecated `ConfigCachePass`
+
+3.3.0
+-----
+
+ * added `ReflectionClassResource` class
+ * added second `$exists` constructor argument to `ClassExistenceResource`
+ * made `ClassExistenceResource` work with interfaces and traits
+ * added `ConfigCachePass` (originally in FrameworkBundle)
+ * added `castToArray()` helper to turn any config value into an array
+
+3.0.0
+-----
+
+ * removed `ReferenceDumper` class
+ * removed the `ResourceInterface::isFresh()` method
+ * removed `BCResourceInterfaceChecker` class
+ * removed `ResourceInterface::getResource()` method
+
+2.8.0
+-----
+
+The edge case of defining just one value for nodes of type Enum is now allowed:
+
+```php
+$rootNode
+    ->children()
+        ->enumNode('variable')
+            ->values(['value'])
+        ->end()
+    ->end()
+;
+```
+
+Before: `InvalidArgumentException` (variable must contain at least two
+distinct elements).
+After: the code will work as expected and it will restrict the values of the
+`variable` option to just `value`.
+
+ * deprecated the `ResourceInterface::isFresh()` method. If you implement custom resource types and they
+   can be validated that way, make them implement the new `SelfCheckingResourceInterface`.
+ * deprecated the getResource() method in ResourceInterface. You can still call this method
+   on concrete classes implementing the interface, but it does not make sense at the interface
+   level as you need to know about the particular type of resource at hand to understand the
+   semantics of the returned value.
+
+2.7.0
+-----
+
+ * added `ConfigCacheInterface`, `ConfigCacheFactoryInterface` and a basic `ConfigCacheFactory`
+   implementation to delegate creation of ConfigCache instances
+
+2.2.0
+-----
+
+ * added `ArrayNodeDefinition::canBeEnabled()` and `ArrayNodeDefinition::canBeDisabled()`
+   to ease configuration when some sections are respectively disabled / enabled
+   by default.
+ * added a `normalizeKeys()` method for array nodes (to avoid key normalization)
+ * added numerical type handling for config definitions
+ * added convenience methods for optional configuration sections to `ArrayNodeDefinition`
+ * added a utils class for XML manipulations
+
+2.1.0
+-----
+
+ * added a way to add documentation on configuration
+ * implemented `Serializable` on resources
+ * `LoaderResolverInterface` is now used instead of `LoaderResolver` for type
+   hinting

backend/vendor/symfony/config/ConfigCache.php

@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+use Symfony\Component\Config\Resource\ResourceInterface;
+use Symfony\Component\Config\Resource\SelfCheckingResourceChecker;
+use Symfony\Component\Config\Resource\SkippingResourceChecker;
+
+/**
+ * ConfigCache caches arbitrary content in files on disk.
+ *
+ * When in debug mode, those metadata resources that implement
+ * \Symfony\Component\Config\Resource\SelfCheckingResourceInterface will
+ * be used to check cache freshness.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+class ConfigCache extends ResourceCheckerConfigCache
+{
+    /**
+     * @param string                                 $file                 The absolute cache path
+     * @param bool                                   $debug                Whether debugging is enabled or not
+     * @param string|null                            $metaFile             The absolute path to the meta file
+     * @param class-string<ResourceInterface>[]|null $skippedResourceTypes
+     */
+    public function __construct(
+        string $file,
+        private bool $debug,
+        ?string $metaFile = null,
+        ?array $skippedResourceTypes = null,
+    ) {
+        $checkers = [];
+        if ($this->debug) {
+            if (null !== $skippedResourceTypes) {
+                $checkers[] = new SkippingResourceChecker($skippedResourceTypes);
+            }
+            $checkers[] = new SelfCheckingResourceChecker();
+        }
+
+        parent::__construct($file, $checkers, $metaFile);
+    }
+
+    /**
+     * Checks if the cache is still fresh.
+     *
+     * This implementation always returns true when debug is off and the
+     * cache file exists.
+     */
+    public function isFresh(): bool
+    {
+        if (!$this->debug && is_file($this->getPath())) {
+            return true;
+        }
+
+        return parent::isFresh();
+    }
+}

backend/vendor/symfony/config/ConfigCacheFactory.php

@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+/**
+ * Basic implementation of ConfigCacheFactoryInterface that
+ * creates an instance of the default ConfigCache.
+ *
+ * This factory and/or cache <em>do not</em> support cache validation
+ * by means of ResourceChecker instances (that is, service-based).
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+class ConfigCacheFactory implements ConfigCacheFactoryInterface
+{
+    /**
+     * @param bool $debug The debug flag to pass to ConfigCache
+     */
+    public function __construct(
+        private bool $debug,
+    ) {
+    }
+
+    public function cache(string $file, callable $callback): ConfigCacheInterface
+    {
+        $cache = new ConfigCache($file, $this->debug);
+        if (!$cache->isFresh()) {
+            $callback($cache);
+        }
+
+        return $cache;
+    }
+}

backend/vendor/symfony/config/ConfigCacheFactoryInterface.php

@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+/**
+ * Interface for a ConfigCache factory. This factory creates
+ * an instance of ConfigCacheInterface and initializes the
+ * cache if necessary.
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+interface ConfigCacheFactoryInterface
+{
+    /**
+     * Creates a cache instance and (re-)initializes it if necessary.
+     *
+     * @param string   $file     The absolute cache file path
+     * @param callable $callable The callable to be executed when the cache needs to be filled (i. e. is not fresh). The cache will be passed as the only parameter to this callback
+     */
+    public function cache(string $file, callable $callable): ConfigCacheInterface;
+}

backend/vendor/symfony/config/ConfigCacheInterface.php

@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+use Symfony\Component\Config\Resource\ResourceInterface;
+
+/**
+ * Interface for ConfigCache.
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+interface ConfigCacheInterface
+{
+    /**
+     * Gets the cache file path.
+     */
+    public function getPath(): string;
+
+    /**
+     * Checks if the cache is still fresh.
+     *
+     * This check should take the metadata passed to the write() method into consideration.
+     */
+    public function isFresh(): bool;
+
+    /**
+     * Writes the given content into the cache file. Metadata will be stored
+     * independently and can be used to check cache freshness at a later time.
+     *
+     * @param string                   $content  The content to write into the cache
+     * @param ResourceInterface[]|null $metadata An array of ResourceInterface instances
+     *
+     * @throws \RuntimeException When the cache file cannot be written
+     */
+    public function write(string $content, ?array $metadata = null): void;
+}

backend/vendor/symfony/config/Definition/ArrayNode.php

@@ -0,0 +1,399 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
+
+/**
+ * Represents an Array node in the config tree.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ArrayNode extends BaseNode implements PrototypeNodeInterface
+{
+    protected array $xmlRemappings = [];
+    protected array $children = [];
+    protected bool $allowFalse = false;
+    protected bool $allowNewKeys = true;
+    protected bool $addIfNotSet = false;
+    protected bool $performDeepMerging = true;
+    protected bool $ignoreExtraKeys = false;
+    protected bool $removeExtraKeys = true;
+    protected bool $normalizeKeys = true;
+
+    public function setNormalizeKeys(bool $normalizeKeys): void
+    {
+        $this->normalizeKeys = $normalizeKeys;
+    }
+
+    /**
+     * Namely, you mostly have foo_bar in YAML while you have foo-bar in XML.
+     * After running this method, all keys are normalized to foo_bar.
+     *
+     * If you have a mixed key like foo-bar_moo, it will not be altered.
+     * The key will also not be altered if the target key already exists.
+     */
+    protected function preNormalize(mixed $value): mixed
+    {
+        if (!$this->normalizeKeys || !\is_array($value)) {
+            return $value;
+        }
+
+        $normalized = [];
+
+        foreach ($value as $k => $v) {
+            if (str_contains($k, '-') && !str_contains($k, '_') && !\array_key_exists($normalizedKey = str_replace('-', '_', $k), $value)) {
+                $normalized[$normalizedKey] = $v;
+            } else {
+                $normalized[$k] = $v;
+            }
+        }
+
+        return $normalized;
+    }
+
+    /**
+     * Retrieves the children of this node.
+     *
+     * @return array<string, NodeInterface>
+     */
+    public function getChildren(): array
+    {
+        return $this->children;
+    }
+
+    /**
+     * Sets the xml remappings that should be performed.
+     *
+     * @param array $remappings An array of the form [[string, string]]
+     */
+    public function setXmlRemappings(array $remappings): void
+    {
+        $this->xmlRemappings = $remappings;
+    }
+
+    /**
+     * Gets the xml remappings that should be performed.
+     *
+     * @return array an array of the form [[string, string]]
+     */
+    public function getXmlRemappings(): array
+    {
+        return $this->xmlRemappings;
+    }
+
+    /**
+     * Sets whether to add default values for this array if it has not been
+     * defined in any of the configuration files.
+     */
+    public function setAddIfNotSet(bool $boolean): void
+    {
+        $this->addIfNotSet = $boolean;
+    }
+
+    /**
+     * Sets whether false is allowed as value indicating that the array should be unset.
+     */
+    public function setAllowFalse(bool $allow): void
+    {
+        $this->allowFalse = $allow;
+    }
+
+    /**
+     * Sets whether new keys can be defined in subsequent configurations.
+     */
+    public function setAllowNewKeys(bool $allow): void
+    {
+        $this->allowNewKeys = $allow;
+    }
+
+    /**
+     * Sets if deep merging should occur.
+     */
+    public function setPerformDeepMerging(bool $boolean): void
+    {
+        $this->performDeepMerging = $boolean;
+    }
+
+    /**
+     * Whether deep merging should occur.
+     */
+    public function shouldPerformDeepMerging(): bool
+    {
+        return $this->performDeepMerging;
+    }
+
+    /**
+     * Whether extra keys should just be ignored without an exception.
+     *
+     * @param bool $boolean To allow extra keys
+     * @param bool $remove  To remove extra keys
+     */
+    public function setIgnoreExtraKeys(bool $boolean, bool $remove = true): void
+    {
+        $this->ignoreExtraKeys = $boolean;
+        $this->removeExtraKeys = $this->ignoreExtraKeys && $remove;
+    }
+
+    /**
+     * Returns true when extra keys should be ignored without an exception.
+     */
+    public function shouldIgnoreExtraKeys(): bool
+    {
+        return $this->ignoreExtraKeys;
+    }
+
+    public function setName(string $name): void
+    {
+        $this->name = $name;
+    }
+
+    public function hasDefaultValue(): bool
+    {
+        return $this->addIfNotSet;
+    }
+
+    public function getDefaultValue(): mixed
+    {
+        if (!$this->hasDefaultValue()) {
+            throw new \RuntimeException(\sprintf('The node at path "%s" has no default value.', $this->getPath()));
+        }
+
+        $defaults = [];
+        foreach ($this->children as $name => $child) {
+            if ($child->hasDefaultValue()) {
+                $defaults[$name] = $child->getDefaultValue();
+            }
+        }
+
+        return $defaults;
+    }
+
+    /**
+     * Adds a child node.
+     *
+     * @throws \InvalidArgumentException when the child node has no name
+     * @throws \InvalidArgumentException when the child node's name is not unique
+     */
+    public function addChild(NodeInterface $node): void
+    {
+        $name = $node->getName();
+        if ('' === $name) {
+            throw new \InvalidArgumentException('Child nodes must be named.');
+        }
+        if (isset($this->children[$name])) {
+            throw new \InvalidArgumentException(\sprintf('A child node named "%s" already exists.', $name));
+        }
+
+        $this->children[$name] = $node;
+    }
+
+    /**
+     * @throws UnsetKeyException
+     * @throws InvalidConfigurationException if the node doesn't have enough children
+     */
+    protected function finalizeValue(mixed $value): mixed
+    {
+        if (false === $value) {
+            throw new UnsetKeyException(\sprintf('Unsetting key for path "%s", value: false.', $this->getPath()));
+        }
+
+        foreach ($this->children as $name => $child) {
+            if (!\array_key_exists($name, $value)) {
+                if ($child->isRequired()) {
+                    $message = \sprintf('The child config "%s" under "%s" must be configured', $name, $this->getPath());
+                    if ($child->getInfo()) {
+                        $message .= \sprintf(': %s', $child->getInfo());
+                    } else {
+                        $message .= '.';
+                    }
+                    $ex = new InvalidConfigurationException($message);
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                }
+
+                if ($child->hasDefaultValue()) {
+                    $value[$name] = $child->getDefaultValue();
+                }
+
+                continue;
+            }
+
+            if ($child->isDeprecated()) {
+                $deprecation = $child->getDeprecation($name, $this->getPath());
+                trigger_deprecation($deprecation['package'], $deprecation['version'], $deprecation['message']);
+            }
+
+            try {
+                $value[$name] = $child->finalize($value[$name]);
+            } catch (UnsetKeyException) {
+                unset($value[$name]);
+            }
+        }
+
+        return $value;
+    }
+
+    protected function validateType(mixed $value): void
+    {
+        if (!\is_array($value) && (!$this->allowFalse || false !== $value)) {
+            $ex = new InvalidTypeException(\sprintf('Invalid type for path "%s". Expected "array", but got "%s"', $this->getPath(), get_debug_type($value)));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+
+    /**
+     * @throws InvalidConfigurationException
+     */
+    protected function normalizeValue(mixed $value): mixed
+    {
+        if (false === $value) {
+            return $value;
+        }
+
+        $value = $this->remapXml($value);
+
+        $normalized = [];
+        foreach ($value as $name => $val) {
+            if (isset($this->children[$name])) {
+                try {
+                    $normalized[$name] = $this->children[$name]->normalize($val);
+                } catch (UnsetKeyException) {
+                }
+                unset($value[$name]);
+            } elseif (!$this->removeExtraKeys) {
+                $normalized[$name] = $val;
+            }
+        }
+
+        // if extra fields are present, throw exception
+        if (\count($value) && !$this->ignoreExtraKeys) {
+            $proposals = array_keys($this->children);
+            sort($proposals);
+            $guesses = [];
+
+            foreach (array_keys($value) as $subject) {
+                $minScore = \INF;
+                foreach ($proposals as $proposal) {
+                    $distance = levenshtein($subject, $proposal);
+                    if ($distance <= $minScore && $distance < 3) {
+                        $guesses[$proposal] = $distance;
+                        $minScore = $distance;
+                    }
+                }
+            }
+
+            $msg = \sprintf('Unrecognized option%s "%s" under "%s"', 1 === \count($value) ? '' : 's', implode(', ', array_keys($value)), $this->getPath());
+
+            if (\count($guesses)) {
+                asort($guesses);
+                $msg .= \sprintf('. Did you mean "%s"?', implode('", "', array_keys($guesses)));
+            } else {
+                $msg .= \sprintf('. Available option%s %s "%s".', 1 === \count($proposals) ? '' : 's', 1 === \count($proposals) ? 'is' : 'are', implode('", "', $proposals));
+            }
+
+            $ex = new InvalidConfigurationException($msg);
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+
+        return $normalized;
+    }
+
+    /**
+     * Remaps multiple singular values to a single plural value.
+     */
+    protected function remapXml(array $value): array
+    {
+        foreach ($this->xmlRemappings as [$singular, $plural]) {
+            if (!isset($value[$singular])) {
+                continue;
+            }
+
+            $value[$plural] = Processor::normalizeConfig($value, $singular, $plural);
+            unset($value[$singular]);
+        }
+
+        return $value;
+    }
+
+    /**
+     * @throws InvalidConfigurationException
+     * @throws \RuntimeException
+     */
+    protected function mergeValues(mixed $leftSide, mixed $rightSide): mixed
+    {
+        if (false === $rightSide) {
+            // if this is still false after the last config has been merged the
+            // finalization pass will take care of removing this key entirely
+            return false;
+        }
+
+        if (false === $leftSide || !$this->performDeepMerging) {
+            return $rightSide;
+        }
+
+        if ($this->getAttribute('auto_enable')
+            && \is_array($leftSide) && \is_array($rightSide)
+            && !\array_key_exists('enabled', $leftSide) && !\array_key_exists('enabled', $rightSide)
+        ) {
+            $rightSide['enabled'] = true;
+        }
+
+        foreach ($rightSide as $k => $v) {
+            // no conflict
+            if (!\array_key_exists($k, $leftSide)) {
+                if (!$this->allowNewKeys) {
+                    $ex = new InvalidConfigurationException(\sprintf('You are not allowed to define new elements for path "%s". Please define all elements for this path in one config file. If you are trying to overwrite an element, make sure you redefine it with the same name.', $this->getPath()));
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                }
+
+                if (\is_array($v) && ($this->children[$k] ?? null) instanceof self) {
+                    // Ensure child's merge is called to handle auto_enable recursively
+                    $leftSide[$k] = $this->children[$k]->merge([], $v);
+                } else {
+                    $leftSide[$k] = $v;
+                }
+                continue;
+            }
+
+            if (!isset($this->children[$k])) {
+                if (!$this->ignoreExtraKeys || $this->removeExtraKeys) {
+                    throw new \RuntimeException('merge() expects a normalized config array.');
+                }
+
+                $leftSide[$k] = $v;
+                continue;
+            }
+
+            $leftSide[$k] = $this->children[$k]->merge($leftSide[$k], $v);
+        }
+
+        return $leftSide;
+    }
+
+    protected function allowPlaceholders(): bool
+    {
+        return false;
+    }
+}

backend/vendor/symfony/config/Definition/ArrayShapeGenerator.php

@@ -0,0 +1,152 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Loader\ParamConfigurator;
+
+/**
+ * @author Alexandre Daubois <alex.daubois@gmail.com>
+ */
+final class ArrayShapeGenerator
+{
+    public static function generate(NodeInterface $node): string
+    {
+        return str_replace("\n", "\n * ", self::doGeneratePhpDoc($node));
+    }
+
+    private static function doGeneratePhpDoc(NodeInterface $node, int $nestingLevel = 1): string
+    {
+        if (!$node instanceof ArrayNode) {
+            $typeString = match (true) {
+                $node instanceof BooleanNode => $node->hasDefaultValue() && null === $node->getDefaultValue() ? 'bool|null' : 'bool',
+                $node instanceof StringNode => 'string',
+                $node instanceof NumericNode => self::handleNumericNode($node),
+                $node instanceof EnumNode => $node->getPermissibleValues('|', false),
+                $node instanceof ScalarNode => 'scalar|null',
+                default => 'mixed',
+            };
+
+            if ('mixed' === $typeString) {
+                return $typeString;
+            }
+
+            if (str_ends_with($typeString, '|null')) {
+                return substr_replace($typeString, '|\\'.ParamConfigurator::class, -5, 0);
+            }
+
+            return $typeString.'|\\'.ParamConfigurator::class;
+        }
+
+        if ($node instanceof PrototypedArrayNode) {
+            $isHashmap = (bool) $node->getKeyAttribute();
+            $arrayShape = ($isHashmap ? 'array<string, ' : 'list<').self::doGeneratePhpDoc($node->getPrototype(), 1 + $nestingLevel).'>';
+
+            return implode('|', [...self::getNormalizedTypes($node, ['array', 'any']), $arrayShape]);
+        }
+
+        if (!($children = $node->getChildren()) && !$node->getParent() instanceof PrototypedArrayNode) {
+            return $node->hasDefaultValue() && null === $node->getDefaultValue() ? 'array<mixed>|null' : 'array<mixed>';
+        }
+
+        $arrayShape = \sprintf("array{%s\n", self::generateInlinePhpDocForNode($node));
+
+        foreach ($children as $child) {
+            $arrayShape .= str_repeat('    ', $nestingLevel).self::dumpNodeKey($child, $node).': ';
+
+            if ($child instanceof PrototypedArrayNode) {
+                $isHashmap = (bool) $child->getKeyAttribute();
+                $childArrayType = ($isHashmap ? 'array<string, ' : 'list<').self::doGeneratePhpDoc($child->getPrototype(), 1 + $nestingLevel).'>';
+                $arrayShape .= $child->hasDefaultValue() && null === $child->getDefaultValue() ? $childArrayType.'|null' : $childArrayType;
+            } else {
+                $arrayShape .= self::doGeneratePhpDoc($child, 1 + $nestingLevel);
+            }
+
+            $arrayShape .= \sprintf(",%s\n", !$child instanceof ArrayNode ? self::generateInlinePhpDocForNode($child) : '');
+        }
+
+        if ($node->shouldIgnoreExtraKeys()) {
+            $arrayShape .= str_repeat('    ', $nestingLevel)."...<mixed>\n";
+        }
+
+        $arrayShape = $arrayShape.str_repeat('    ', $nestingLevel - 1).'}';
+
+        return implode('|', [...self::getNormalizedTypes($node, ['array', 'any']), $arrayShape]);
+    }
+
+    private static function dumpNodeKey(NodeInterface $node, ?ArrayNode $parent = null): string
+    {
+        $name = $node->getName();
+        $quoted = str_starts_with($name, '@')
+            || \in_array(strtolower($name), ['int', 'float', 'bool', 'null', 'scalar'], true)
+            || strpbrk($name, '\'"');
+
+        if ($quoted) {
+            $name = "'".addslashes($name)."'";
+        }
+
+        $optional = !$node->isRequired() || ($parent instanceof ArrayNode && $parent->shouldPerformDeepMerging());
+
+        return $name.($optional ? '?' : '');
+    }
+
+    private static function handleNumericNode(NumericNode $node): string
+    {
+        // We could use int<%s, %s> but PhpStorm doesn't support it yet
+        // $min = $node->getMin() ?? 'min';
+        // $max = $node->getMax() ?? 'max';
+
+        if ($node instanceof IntegerNode) {
+            return 'int';
+        }
+        if ($node instanceof FloatNode) {
+            return 'float';
+        }
+
+        return 'int|float';
+    }
+
+    private static function generateInlinePhpDocForNode(BaseNode $node): string
+    {
+        $comment = '';
+        if ($node->isDeprecated()) {
+            $comment .= ' // Deprecated: '.$node->getDeprecation($node->getName(), $node->getPath())['message'];
+        }
+
+        if ($info = $node->getInfo()) {
+            $comment .= ' // '.$info;
+        }
+
+        if ((!$node instanceof ArrayNode || ($node = $node->getParent()) instanceof PrototypedArrayNode) && $node->hasDefaultValue()) {
+            $comment .= ' // Default: '.json_encode($node->getDefaultValue(), \JSON_UNESCAPED_SLASHES | \JSON_UNESCAPED_UNICODE | \JSON_PRESERVE_ZERO_FRACTION);
+        }
+
+        return rtrim(preg_replace('/\s+/', ' ', $comment));
+    }
+
+    /**
+     * @return list<string>
+     */
+    private static function getNormalizedTypes(BaseNode $node, array $excluded = []): array
+    {
+        $types = array_diff($node->getNormalizedTypes(), $excluded);
+
+        if ($node->hasDefaultValue() && null === $node->getDefaultValue()) {
+            $types[] = 'null';
+        }
+
+        $types = array_unique($types);
+
+        sort($types);
+
+        return $types;
+    }
+}

backend/vendor/symfony/config/Definition/BaseNode.php

@@ -0,0 +1,539 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Builder\ExprBuilder;
+use Symfony\Component\Config\Definition\Exception\Exception;
+use Symfony\Component\Config\Definition\Exception\ForbiddenOverwriteException;
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
+use Symfony\Component\Config\Exception\LogicException;
+
+/**
+ * The base node class.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+abstract class BaseNode implements NodeInterface
+{
+    public const DEFAULT_PATH_SEPARATOR = '.';
+
+    private static array $placeholderUniquePrefixes = [];
+    private static array $placeholders = [];
+
+    protected string $name;
+    protected array $normalizationClosures = [];
+    protected array $normalizedTypes = [];
+    protected array $finalValidationClosures = [];
+    protected bool $allowOverwrite = true;
+    protected bool $required = false;
+    protected array $deprecation = [];
+    protected array $equivalentValues = [];
+    protected array $attributes = [];
+
+    private mixed $handlingPlaceholder = null;
+
+    /**
+     * @throws \InvalidArgumentException if the name contains a period
+     */
+    public function __construct(
+        ?string $name,
+        protected ?NodeInterface $parent = null,
+        protected string $pathSeparator = self::DEFAULT_PATH_SEPARATOR,
+    ) {
+        if (str_contains($name = (string) $name, $pathSeparator)) {
+            throw new \InvalidArgumentException('The name must not contain ".'.$pathSeparator.'".');
+        }
+
+        $this->name = $name;
+    }
+
+    /**
+     * Register possible (dummy) values for a dynamic placeholder value.
+     *
+     * Matching configuration values will be processed with a provided value, one by one. After a provided value is
+     * successfully processed the configuration value is returned as is, thus preserving the placeholder.
+     *
+     * @internal
+     */
+    public static function setPlaceholder(string $placeholder, array $values): void
+    {
+        if (!$values) {
+            throw new \InvalidArgumentException('At least one value must be provided.');
+        }
+
+        self::$placeholders[$placeholder] = $values;
+    }
+
+    /**
+     * Adds a common prefix for dynamic placeholder values.
+     *
+     * Matching configuration values will be skipped from being processed and are returned as is, thus preserving the
+     * placeholder. An exact match provided by {@see setPlaceholder()} might take precedence.
+     *
+     * @internal
+     */
+    public static function setPlaceholderUniquePrefix(string $prefix): void
+    {
+        self::$placeholderUniquePrefixes[] = $prefix;
+    }
+
+    /**
+     * Resets all current placeholders available.
+     *
+     * @internal
+     */
+    public static function resetPlaceholders(): void
+    {
+        self::$placeholderUniquePrefixes = [];
+        self::$placeholders = [];
+    }
+
+    public function setAttribute(string $key, mixed $value): void
+    {
+        $this->attributes[$key] = $value;
+    }
+
+    public function getAttribute(string $key, mixed $default = null): mixed
+    {
+        return $this->attributes[$key] ?? $default;
+    }
+
+    public function hasAttribute(string $key): bool
+    {
+        return isset($this->attributes[$key]);
+    }
+
+    public function getAttributes(): array
+    {
+        return $this->attributes;
+    }
+
+    public function setAttributes(array $attributes): void
+    {
+        $this->attributes = $attributes;
+    }
+
+    public function removeAttribute(string $key): void
+    {
+        unset($this->attributes[$key]);
+    }
+
+    /**
+     * Sets an info message.
+     */
+    public function setInfo(string $info): void
+    {
+        $this->setAttribute('info', $info);
+    }
+
+    /**
+     * Returns info message.
+     */
+    public function getInfo(): ?string
+    {
+        return $this->getAttribute('info');
+    }
+
+    /**
+     * Sets the example configuration for this node.
+     */
+    public function setExample(string|array $example): void
+    {
+        $this->setAttribute('example', $example);
+    }
+
+    /**
+     * Retrieves the example configuration for this node.
+     */
+    public function getExample(): string|array|null
+    {
+        return $this->getAttribute('example');
+    }
+
+    /**
+     * Adds an equivalent value.
+     */
+    public function addEquivalentValue(mixed $originalValue, mixed $equivalentValue): void
+    {
+        $this->equivalentValues[] = [$originalValue, $equivalentValue];
+    }
+
+    /**
+     * Set this node as required.
+     */
+    public function setRequired(bool $boolean): void
+    {
+        $this->required = $boolean;
+    }
+
+    /**
+     * Sets this node as deprecated.
+     *
+     * You can use %node% and %path% placeholders in your message to display,
+     * respectively, the node name and its complete path.
+     *
+     * @param string $package The name of the composer package that is triggering the deprecation
+     * @param string $version The version of the package that introduced the deprecation
+     * @param string $message the deprecation message to use
+     */
+    public function setDeprecated(string $package, string $version, string $message = 'The child node "%node%" at path "%path%" is deprecated.'): void
+    {
+        $this->deprecation = [
+            'package' => $package,
+            'version' => $version,
+            'message' => $message,
+        ];
+    }
+
+    /**
+     * Sets if this node can be overridden.
+     */
+    public function setAllowOverwrite(bool $allow): void
+    {
+        $this->allowOverwrite = $allow;
+    }
+
+    /**
+     * Sets the closures used for normalization.
+     *
+     * @param \Closure[] $closures An array of Closures used for normalization
+     */
+    public function setNormalizationClosures(array $closures): void
+    {
+        $this->normalizationClosures = $closures;
+    }
+
+    /**
+     * Sets the list of types supported by normalization.
+     *
+     * @param list<ExprBuilder::TYPE_*> $types
+     */
+    public function setNormalizedTypes(array $types): void
+    {
+        $this->normalizedTypes = $types;
+    }
+
+    /**
+     * Gets the list of types supported by normalization.
+     *
+     * @return list<ExprBuilder::TYPE_*>
+     */
+    public function getNormalizedTypes(): array
+    {
+        return $this->normalizedTypes;
+    }
+
+    /**
+     * Sets the closures used for final validation.
+     *
+     * @param \Closure[] $closures An array of Closures used for final validation
+     */
+    public function setFinalValidationClosures(array $closures): void
+    {
+        $this->finalValidationClosures = $closures;
+    }
+
+    public function isRequired(): bool
+    {
+        return $this->required;
+    }
+
+    /**
+     * Checks if this node is deprecated.
+     */
+    public function isDeprecated(): bool
+    {
+        return (bool) $this->deprecation;
+    }
+
+    /**
+     * @param string $node The configuration node name
+     * @param string $path The path of the node
+     *
+     * @return array{package: string, version: string, message: string}
+     */
+    public function getDeprecation(string $node, string $path): array
+    {
+        if (!$this->deprecation) {
+            throw new LogicException(\sprintf('The node "%s" is not deprecated.', $this->getName()));
+        }
+
+        return [
+            'package' => $this->deprecation['package'],
+            'version' => $this->deprecation['version'],
+            'message' => strtr($this->deprecation['message'], ['%node%' => $node, '%path%' => $path]),
+        ];
+    }
+
+    /**
+     * @internal
+     */
+    public function getDeprecationMessage(?NodeInterface $parent = null): string
+    {
+        if (!$this->deprecation) {
+            throw new LogicException(\sprintf('The node "%s" is not deprecated.', $this->getName()));
+        }
+
+        $message = strtr($this->deprecation['message'], ['%node%' => $this->getName(), '%path%' => ($parent ?? $this->parent ?? $this)->getPath()]);
+        if ($this->deprecation['package'] || $this->deprecation['version']) {
+            $message = \sprintf('Since %s %s: ', $this->deprecation['package'], $this->deprecation['version']).$message;
+        }
+
+        return $message;
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function getPath(): string
+    {
+        if (null !== $this->parent) {
+            return $this->parent->getPath().$this->pathSeparator.$this->name;
+        }
+
+        return $this->name;
+    }
+
+    final public function merge(mixed $leftSide, mixed $rightSide): mixed
+    {
+        // Only enforce cannotBeOverwritten when there's actually something to overwrite.
+        // When leftSide is empty (initial population), this check doesn't apply.
+        if (!$this->allowOverwrite && [] !== $leftSide) {
+            throw new ForbiddenOverwriteException(\sprintf('Configuration path "%s" cannot be overwritten. You have to define all options for this path, and any of its sub-paths in one configuration section.', $this->getPath()));
+        }
+
+        if ($leftSide !== $leftPlaceholders = self::resolvePlaceholderValue($leftSide)) {
+            foreach ($leftPlaceholders as $leftPlaceholder) {
+                $this->handlingPlaceholder = $leftSide;
+                try {
+                    $this->merge($leftPlaceholder, $rightSide);
+                } finally {
+                    $this->handlingPlaceholder = null;
+                }
+            }
+
+            return $rightSide;
+        }
+
+        if ($rightSide !== $rightPlaceholders = self::resolvePlaceholderValue($rightSide)) {
+            foreach ($rightPlaceholders as $rightPlaceholder) {
+                $this->handlingPlaceholder = $rightSide;
+                try {
+                    $this->merge($leftSide, $rightPlaceholder);
+                } finally {
+                    $this->handlingPlaceholder = null;
+                }
+            }
+
+            return $rightSide;
+        }
+
+        $this->doValidateType($leftSide);
+        $this->doValidateType($rightSide);
+
+        return $this->mergeValues($leftSide, $rightSide);
+    }
+
+    final public function normalize(mixed $value): mixed
+    {
+        $value = $this->preNormalize($value);
+
+        // run custom normalization closures
+        foreach ($this->normalizationClosures as $closure) {
+            $value = $closure($value);
+        }
+
+        // resolve placeholder value
+        if ($value !== $placeholders = self::resolvePlaceholderValue($value)) {
+            foreach ($placeholders as $placeholder) {
+                $this->handlingPlaceholder = $value;
+                try {
+                    $this->normalize($placeholder);
+                } finally {
+                    $this->handlingPlaceholder = null;
+                }
+            }
+
+            return $value;
+        }
+
+        // replace value with their equivalent
+        foreach ($this->equivalentValues as $data) {
+            if ($data[0] === $value) {
+                $value = $data[1];
+            }
+        }
+
+        // validate type
+        $this->doValidateType($value);
+
+        // normalize value
+        return $this->normalizeValue($value);
+    }
+
+    /**
+     * Normalizes the value before any other normalization is applied.
+     */
+    protected function preNormalize(mixed $value): mixed
+    {
+        return $value;
+    }
+
+    /**
+     * Returns parent node for this node.
+     */
+    public function getParent(): ?NodeInterface
+    {
+        return $this->parent;
+    }
+
+    final public function finalize(mixed $value): mixed
+    {
+        if ($value !== $placeholders = self::resolvePlaceholderValue($value)) {
+            foreach ($placeholders as $placeholder) {
+                $this->handlingPlaceholder = $value;
+                try {
+                    $this->finalize($placeholder);
+                } finally {
+                    $this->handlingPlaceholder = null;
+                }
+            }
+
+            return $value;
+        }
+
+        $this->doValidateType($value);
+
+        $value = $this->finalizeValue($value);
+
+        // Perform validation on the final value if a closure has been set.
+        // The closure is also allowed to return another value.
+        foreach ($this->finalValidationClosures as $closure) {
+            try {
+                $value = $closure($value);
+            } catch (Exception $e) {
+                if ($e instanceof UnsetKeyException && null !== $this->handlingPlaceholder) {
+                    continue;
+                }
+
+                throw $e;
+            } catch (\Exception $e) {
+                throw new InvalidConfigurationException(\sprintf('Invalid configuration for path "%s": ', $this->getPath()).$e->getMessage(), $e->getCode(), $e);
+            }
+        }
+
+        return $value;
+    }
+
+    /**
+     * Validates the type of a Node.
+     *
+     * @throws InvalidTypeException when the value is invalid
+     */
+    abstract protected function validateType(mixed $value): void;
+
+    /**
+     * Normalizes the value.
+     */
+    abstract protected function normalizeValue(mixed $value): mixed;
+
+    /**
+     * Merges two values together.
+     */
+    abstract protected function mergeValues(mixed $leftSide, mixed $rightSide): mixed;
+
+    /**
+     * Finalizes a value.
+     */
+    abstract protected function finalizeValue(mixed $value): mixed;
+
+    /**
+     * Tests if placeholder values are allowed for this node.
+     */
+    protected function allowPlaceholders(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Tests if a placeholder is being handled currently.
+     */
+    protected function isHandlingPlaceholder(): bool
+    {
+        return null !== $this->handlingPlaceholder;
+    }
+
+    /**
+     * Gets allowed dynamic types for this node.
+     */
+    protected function getValidPlaceholderTypes(): array
+    {
+        return [];
+    }
+
+    private static function resolvePlaceholderValue(mixed $value): mixed
+    {
+        if (\is_string($value)) {
+            if (isset(self::$placeholders[$value])) {
+                return self::$placeholders[$value];
+            }
+
+            foreach (self::$placeholderUniquePrefixes as $placeholderUniquePrefix) {
+                if (str_starts_with($value, $placeholderUniquePrefix)) {
+                    return [];
+                }
+            }
+        }
+
+        return $value;
+    }
+
+    private function doValidateType(mixed $value): void
+    {
+        if (null !== $this->handlingPlaceholder && !$this->allowPlaceholders()) {
+            $e = new InvalidTypeException(\sprintf('A dynamic value is not compatible with a "%s" node type at path "%s".', static::class, $this->getPath()));
+            $e->setPath($this->getPath());
+
+            throw $e;
+        }
+
+        if (null === $this->handlingPlaceholder || null === $value) {
+            $this->validateType($value);
+
+            return;
+        }
+
+        $knownTypes = array_keys(self::$placeholders[$this->handlingPlaceholder]);
+        $validTypes = $this->getValidPlaceholderTypes();
+
+        if ($validTypes && array_diff($knownTypes, $validTypes)) {
+            $e = new InvalidTypeException(\sprintf(
+                'Invalid type for path "%s". Expected %s, but got %s.',
+                $this->getPath(),
+                1 === \count($validTypes) ? '"'.reset($validTypes).'"' : 'one of "'.implode('", "', $validTypes).'"',
+                1 === \count($knownTypes) ? '"'.reset($knownTypes).'"' : 'one of "'.implode('", "', $knownTypes).'"'
+            ));
+            if ($hint = $this->getInfo()) {
+                $e->addHint($hint);
+            }
+            $e->setPath($this->getPath());
+
+            throw $e;
+        }
+
+        $this->validateType($value);
+    }
+}

backend/vendor/symfony/config/Definition/BooleanNode.php

@@ -0,0 +1,59 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+
+/**
+ * This node represents a Boolean value in the config tree.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class BooleanNode extends ScalarNode
+{
+    public function __construct(
+        ?string $name,
+        ?NodeInterface $parent = null,
+        string $pathSeparator = self::DEFAULT_PATH_SEPARATOR,
+        private bool $nullable = false,
+    ) {
+        parent::__construct($name, $parent, $pathSeparator);
+    }
+
+    protected function validateType(mixed $value): void
+    {
+        if (!\is_bool($value)) {
+            if (null === $value && $this->nullable) {
+                return;
+            }
+
+            $ex = new InvalidTypeException(\sprintf('Invalid type for path "%s". Expected "bool%s", but got "%s".', $this->getPath(), $this->nullable ? '" or "null' : '', get_debug_type($value)));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+
+    protected function isValueEmpty(mixed $value): bool
+    {
+        // a boolean value cannot be empty
+        return false;
+    }
+
+    protected function getValidPlaceholderTypes(): array
+    {
+        return ['bool'];
+    }
+}

backend/vendor/symfony/config/Definition/Builder/ArrayNodeDefinition.php

@@ -0,0 +1,648 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\ArrayNode;
+use Symfony\Component\Config\Definition\Exception\InvalidDefinitionException;
+use Symfony\Component\Config\Definition\NodeInterface;
+use Symfony\Component\Config\Definition\PrototypedArrayNode;
+
+/**
+ * This class provides a fluent interface for defining an array node.
+ *
+ * @template TParent of NodeParentInterface|null = null
+ *
+ * @extends NodeDefinition<TParent>
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ArrayNodeDefinition extends NodeDefinition implements ParentNodeDefinitionInterface
+{
+    protected bool $performDeepMerging = true;
+    protected bool $ignoreExtraKeys = false;
+    protected bool $removeExtraKeys = true;
+    /**
+     * @var NodeDefinition<$this>[]
+     */
+    protected array $children = [];
+    /**
+     * @var NodeDefinition<$this>
+     */
+    protected NodeDefinition $prototype;
+    protected bool $atLeastOne = false;
+    protected bool $allowNewKeys = true;
+    protected ?string $key = null;
+    protected bool $removeKeyItem = false;
+    protected bool $addDefaults = false;
+    protected int|string|array|false|null $addDefaultChildren = false;
+    /**
+     * @var NodeBuilder<static>
+     */
+    protected NodeBuilder $nodeBuilder;
+    protected bool $normalizeKeys = true;
+
+    /**
+     * @var list<ExprBuilder::TYPE_*>|null
+     */
+    protected ?array $allowedTypes = null;
+
+    /**
+     * @param TParent $parent
+     */
+    public function __construct(?string $name, ?NodeParentInterface $parent = null)
+    {
+        parent::__construct($name, $parent);
+
+        $this->nullEquivalent = [];
+        $this->trueEquivalent = [];
+    }
+
+    /**
+     * @return $this
+     */
+    public function defaultValue(mixed $value): static
+    {
+        $this->nullEquivalent = null === $value ? null : [];
+
+        return parent::defaultValue($value);
+    }
+
+    /**
+     * @param NodeBuilder<static> $builder
+     */
+    public function setBuilder(NodeBuilder $builder): void
+    {
+        $this->nodeBuilder = $builder;
+    }
+
+    /**
+     * Allows alternative types and wraps them into arrays.
+     *
+     * @param list<ExprBuilder::TYPE_INT|ExprBuilder::TYPE_STRING|ExprBuilder::TYPE_BOOL|ExprBuilder::TYPE_NULL|ExprBuilder::TYPE_BACKED_ENUM> $allowedTypes
+     * @param string|null                                                                                                                      $key          The key to wrap the value in
+     *
+     * @return $this
+     */
+    public function acceptAndWrap(array $allowedTypes, ?string $key = null): static
+    {
+        $this->allowedTypes = $allowedTypes;
+
+        foreach ($allowedTypes as $type) {
+            $this->beforeNormalization()->ifTrue(match ($type) {
+                ExprBuilder::TYPE_INT => is_int(...),
+                ExprBuilder::TYPE_STRING => is_string(...),
+                ExprBuilder::TYPE_BOOL => is_bool(...),
+                ExprBuilder::TYPE_NULL => is_null(...),
+                ExprBuilder::TYPE_BACKED_ENUM => static fn ($v) => $v instanceof \BackedEnum,
+            })->then(static fn ($v) => [$key ?? 0 => $v]);
+        }
+
+        return $this;
+    }
+
+    /**
+     * @return NodeBuilder<static>
+     */
+    public function children(): NodeBuilder
+    {
+        return $this->getNodeBuilder();
+    }
+
+    /**
+     * Sets a prototype for child nodes.
+     *
+     * @template T of 'array'|'variable'|'scalar'|'string'|'boolean'|'integer'|'float'|'enum'
+     *
+     * @param T $type
+     *
+     * @return (
+     *    T is 'array' ? ArrayNodeDefinition<$this>
+     *    : (T is 'variable' ? VariableNodeDefinition<$this>
+     *    : (T is 'scalar' ? ScalarNodeDefinition<$this>
+     *    : (T is 'string' ? StringNodeDefinition<$this>
+     *    : (T is 'boolean' ? BooleanNodeDefinition<$this>
+     *    : (T is 'integer' ? IntegerNodeDefinition<$this>
+     *    : (T is 'float' ? FloatNodeDefinition<$this>
+     *    : (T is 'enum' ? EnumNodeDefinition<$this>
+     *    : NodeDefinition<$this>)))))))
+     * )
+     */
+    public function prototype(string $type): NodeDefinition
+    {
+        return $this->prototype = $this->getNodeBuilder()->node(null, $type)->setParent($this);
+    }
+
+    /**
+     * @return VariableNodeDefinition<$this>
+     */
+    public function variablePrototype(): VariableNodeDefinition
+    {
+        return $this->prototype('variable');
+    }
+
+    /**
+     * @return ScalarNodeDefinition<$this>
+     */
+    public function scalarPrototype(): ScalarNodeDefinition
+    {
+        return $this->prototype('scalar');
+    }
+
+    /**
+     * @return StringNodeDefinition<$this>
+     */
+    public function stringPrototype(): StringNodeDefinition
+    {
+        return $this->prototype('string');
+    }
+
+    /**
+     * @return BooleanNodeDefinition<$this>
+     */
+    public function booleanPrototype(): BooleanNodeDefinition
+    {
+        return $this->prototype('boolean');
+    }
+
+    /**
+     * @return IntegerNodeDefinition<$this>
+     */
+    public function integerPrototype(): IntegerNodeDefinition
+    {
+        return $this->prototype('integer');
+    }
+
+    /**
+     * @return FloatNodeDefinition<$this>
+     */
+    public function floatPrototype(): FloatNodeDefinition
+    {
+        return $this->prototype('float');
+    }
+
+    /**
+     * @return self<$this>
+     */
+    public function arrayPrototype(): self
+    {
+        return $this->prototype('array');
+    }
+
+    /**
+     * @return EnumNodeDefinition<$this>
+     */
+    public function enumPrototype(): EnumNodeDefinition
+    {
+        return $this->prototype('enum');
+    }
+
+    /**
+     * Adds the default value if the node is not set in the configuration.
+     *
+     * This method is applicable to concrete nodes only (not to prototype nodes).
+     * If this function has been called and the node is not set during the finalization
+     * phase, it's default value will be derived from its children default values.
+     *
+     * @return $this
+     */
+    public function addDefaultsIfNotSet(): static
+    {
+        $this->addDefaults = true;
+
+        return $this;
+    }
+
+    /**
+     * Adds children with a default value when none are defined.
+     *
+     * This method is applicable to prototype nodes only.
+     *
+     * @param int|string|array|null $children The number of children|The child name|The children names to be added
+     *
+     * @return $this
+     */
+    public function addDefaultChildrenIfNoneSet(int|string|array|null $children = null): static
+    {
+        $this->addDefaultChildren = $children;
+
+        return $this;
+    }
+
+    /**
+     * Requires the node to have at least one element.
+     *
+     * This method is applicable to prototype nodes only.
+     *
+     * @return $this
+     */
+    public function requiresAtLeastOneElement(): static
+    {
+        $this->atLeastOne = true;
+
+        return $this;
+    }
+
+    /**
+     * Disallows adding news keys in a subsequent configuration.
+     *
+     * If used all keys have to be defined in the same configuration file.
+     *
+     * @return $this
+     */
+    public function disallowNewKeysInSubsequentConfigs(): static
+    {
+        $this->allowNewKeys = false;
+
+        return $this;
+    }
+
+    /**
+     * Sets a normalization rule for XML configurations.
+     *
+     * @param string      $singular The key to remap
+     * @param string|null $plural   The plural of the key for irregular plurals
+     *
+     * @return $this
+     */
+    public function fixXmlConfig(string $singular, ?string $plural = null): static
+    {
+        $this->normalization()->remap($singular, $plural);
+
+        return $this;
+    }
+
+    /**
+     * Sets the attribute which value is to be used as key.
+     *
+     * This is useful when you have an indexed array that should be an
+     * associative array. You can select an item from within the array
+     * to be the key of the particular item. For example, if "id" is the
+     * "key", then:
+     *
+     *     [
+     *         ['id' => 'my_name', 'foo' => 'bar'],
+     *     ];
+     *
+     *   becomes
+     *
+     *     [
+     *         'my_name' => ['foo' => 'bar'],
+     *     ];
+     *
+     * If you'd like "'id' => 'my_name'" to still be present in the resulting
+     * array, then you can set the second argument of this method to false.
+     *
+     * This method is applicable to prototype nodes only.
+     *
+     * @param string $name          The name of the key
+     * @param bool   $removeKeyItem Whether or not the key item should be removed
+     *
+     * @return $this
+     */
+    public function useAttributeAsKey(string $name, bool $removeKeyItem = true): static
+    {
+        $this->key = $name;
+        $this->removeKeyItem = $removeKeyItem;
+
+        return $this;
+    }
+
+    /**
+     * Sets whether the node can be unset.
+     *
+     * @return $this
+     */
+    public function canBeUnset(bool $allow = true): static
+    {
+        $this->merge()->allowUnset($allow);
+
+        return $this;
+    }
+
+    /**
+     * Adds an "enabled" boolean to enable the current section.
+     *
+     * By default, the section is disabled. If any configuration is specified then
+     * the node will be automatically enabled:
+     *
+     * enableableArrayNode: {enabled: true, ...}   # The config is enabled & default values get overridden
+     * enableableArrayNode: ~                      # The config is enabled & use the default values
+     * enableableArrayNode: true                   # The config is enabled & use the default values
+     * enableableArrayNode: {other: value, ...}    # The config is enabled & default values get overridden
+     * enableableArrayNode: {enabled: false, ...}  # The config is disabled
+     * enableableArrayNode: false                  # The config is disabled
+     *
+     * @param string|null $info A description of what happens when the node is enabled or disabled
+     *
+     * @return $this
+     */
+    public function canBeEnabled(/* ?string $info = null */): static
+    {
+        $disabledNode = $this
+            ->attribute('auto_enable', true)
+            ->addDefaultsIfNotSet()
+            ->treatFalseLike(['enabled' => false])
+            ->treatTrueLike(['enabled' => true])
+            ->treatNullLike(['enabled' => true])
+            ->beforeNormalization()
+                ->ifArray()
+                ->then(static function ($v) {
+                    $v['enabled'] ??= true;
+
+                    return $v;
+                })
+            ->end()
+            ->children()
+                ->booleanNode('enabled')
+                    ->defaultFalse()
+        ;
+
+        $info = 1 <= \func_num_args() ? func_get_arg(0) : null;
+        if ($info) {
+            $disabledNode->info($info);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds an "enabled" boolean to enable the current section.
+     *
+     * By default, the section is enabled.
+     *
+     * @param string|null $info A description of what happens when the node is enabled or disabled
+     *
+     * @return $this
+     */
+    public function canBeDisabled(/* ?string $info = null */): static
+    {
+        $enabledNode = $this
+            ->attribute('auto_enable', true)
+            ->addDefaultsIfNotSet()
+            ->treatFalseLike(['enabled' => false])
+            ->treatTrueLike(['enabled' => true])
+            ->treatNullLike(['enabled' => true])
+            ->children()
+                ->booleanNode('enabled')
+                    ->defaultTrue()
+        ;
+
+        $info = 1 <= \func_num_args() ? func_get_arg(0) : null;
+        if ($info) {
+            $enabledNode->info($info);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Disables the deep merging of the node.
+     *
+     * @return $this
+     */
+    public function performNoDeepMerging(): static
+    {
+        $this->performDeepMerging = false;
+
+        return $this;
+    }
+
+    /**
+     * Allows extra config keys to be specified under an array without
+     * throwing an exception.
+     *
+     * Those config values are ignored and removed from the resulting
+     * array. This should be used only in special cases where you want
+     * to send an entire configuration array through a special tree that
+     * processes only part of the array.
+     *
+     * @param bool $remove Whether to remove the extra keys
+     *
+     * @return $this
+     */
+    public function ignoreExtraKeys(bool $remove = true): static
+    {
+        $this->ignoreExtraKeys = true;
+        $this->removeExtraKeys = $remove;
+
+        return $this;
+    }
+
+    /**
+     * Sets whether to enable key normalization.
+     *
+     * @return $this
+     */
+    public function normalizeKeys(bool $bool): static
+    {
+        $this->normalizeKeys = $bool;
+
+        return $this;
+    }
+
+    public function append(NodeDefinition $node): static
+    {
+        $this->children[$node->name ?? ''] = $node->setParent($this);
+
+        return $this;
+    }
+
+    /**
+     * Returns a node builder to be used to add children and prototype.
+     *
+     * @return NodeBuilder<static>
+     */
+    protected function getNodeBuilder(): NodeBuilder
+    {
+        $this->nodeBuilder ??= new NodeBuilder();
+
+        return $this->nodeBuilder->setParent($this);
+    }
+
+    protected function createNode(): NodeInterface
+    {
+        if (!isset($this->prototype)) {
+            $node = new ArrayNode($this->name, $this->parent, $this->pathSeparator);
+
+            $this->validateConcreteNode($node);
+
+            $node->setAddIfNotSet($this->addDefaults);
+
+            foreach ($this->children as $child) {
+                $child->parent = $node;
+                $node->addChild($child->getNode());
+            }
+        } else {
+            $node = new PrototypedArrayNode($this->name, $this->parent, $this->pathSeparator);
+
+            $this->validatePrototypeNode($node);
+
+            if (null !== $this->key) {
+                $node->setKeyAttribute($this->key, $this->removeKeyItem);
+            }
+
+            if (true === $this->atLeastOne || false === $this->allowEmptyValue) {
+                $node->setMinNumberOfElements(1);
+            }
+
+            if ($this->default) {
+                if (null === $this->defaultValue) {
+                    $node->setNullAsDefault();
+                } elseif (!\is_array($this->defaultValue)) {
+                    throw new \InvalidArgumentException(\sprintf('%s: the default value of an array node has to be an array or null.', $node->getPath()));
+                } else {
+                    $node->setDefaultValue($this->defaultValue);
+                }
+            }
+
+            if (false !== $this->addDefaultChildren) {
+                $node->setAddChildrenIfNoneSet($this->addDefaultChildren);
+                if ($this->prototype instanceof self && !isset($this->prototype->prototype)) {
+                    $this->prototype->addDefaultsIfNotSet();
+                }
+            }
+
+            $this->prototype->parent = $node;
+            $node->setPrototype($this->prototype->getNode());
+        }
+
+        $node->setAllowNewKeys($this->allowNewKeys);
+        $node->addEquivalentValue(null, $this->nullEquivalent);
+        $node->addEquivalentValue(true, $this->trueEquivalent);
+        $node->addEquivalentValue(false, $this->falseEquivalent);
+        $node->setPerformDeepMerging($this->performDeepMerging);
+        $node->setRequired($this->required);
+        $node->setIgnoreExtraKeys($this->ignoreExtraKeys, $this->removeExtraKeys);
+        $node->setNormalizeKeys($this->normalizeKeys);
+
+        if ($this->deprecation) {
+            $node->setDeprecated($this->deprecation['package'], $this->deprecation['version'], $this->deprecation['message']);
+        }
+
+        $normalizedTypes = $this->allowedTypes ?? [];
+
+        if (isset($this->normalization)) {
+            $normalizedTypes = $normalizedTypes ?: $this->normalization->declaredTypes;
+            $node->setNormalizationClosures($this->normalization->before);
+            $node->setXmlRemappings($this->normalization->remappings);
+        }
+
+        $normalizedTypes[] = ExprBuilder::TYPE_ARRAY;
+
+        foreach ([$this->trueEquivalent, $this->falseEquivalent] as $equivalent) {
+            if (\is_array($equivalent) && $equivalent) {
+                $normalizedTypes[] = ExprBuilder::TYPE_BOOL;
+            }
+        }
+
+        $node->setNormalizedTypes(array_values(array_unique($normalizedTypes)));
+
+        if (isset($this->merge)) {
+            $node->setAllowOverwrite($this->merge->allowOverwrite);
+            $node->setAllowFalse($this->merge->allowFalse);
+        }
+
+        if (isset($this->validation)) {
+            $node->setFinalValidationClosures($this->validation->rules);
+        }
+
+        return $node;
+    }
+
+    /**
+     * Validate the configuration of a concrete node.
+     *
+     * @throws InvalidDefinitionException
+     */
+    protected function validateConcreteNode(ArrayNode $node): void
+    {
+        $path = $node->getPath();
+
+        if (null !== $this->key) {
+            throw new InvalidDefinitionException(\sprintf('->useAttributeAsKey() is not applicable to concrete nodes at path "%s".', $path));
+        }
+
+        if (false === $this->allowEmptyValue) {
+            throw new InvalidDefinitionException(\sprintf('->cannotBeEmpty() is not applicable to concrete nodes at path "%s".', $path));
+        }
+
+        if (true === $this->atLeastOne) {
+            throw new InvalidDefinitionException(\sprintf('->requiresAtLeastOneElement() is not applicable to concrete nodes at path "%s".', $path));
+        }
+
+        if ($this->default) {
+            throw new InvalidDefinitionException(\sprintf('->defaultValue() is not applicable to concrete nodes at path "%s".', $path));
+        }
+
+        if (false !== $this->addDefaultChildren) {
+            throw new InvalidDefinitionException(\sprintf('->addDefaultChildrenIfNoneSet() is not applicable to concrete nodes at path "%s".', $path));
+        }
+    }
+
+    /**
+     * Validate the configuration of a prototype node.
+     *
+     * @throws InvalidDefinitionException
+     */
+    protected function validatePrototypeNode(PrototypedArrayNode $node): void
+    {
+        $path = $node->getPath();
+
+        if ($this->addDefaults) {
+            throw new InvalidDefinitionException(\sprintf('->addDefaultsIfNotSet() is not applicable to prototype nodes at path "%s".', $path));
+        }
+
+        if (false !== $this->addDefaultChildren) {
+            if ($this->default) {
+                throw new InvalidDefinitionException(\sprintf('A default value and default children might not be used together at path "%s".', $path));
+            }
+
+            if (null !== $this->key && (null === $this->addDefaultChildren || \is_int($this->addDefaultChildren) && $this->addDefaultChildren > 0)) {
+                throw new InvalidDefinitionException(\sprintf('->addDefaultChildrenIfNoneSet() should set default children names as ->useAttributeAsKey() is used at path "%s".', $path));
+            }
+
+            if (null === $this->key && (\is_string($this->addDefaultChildren) || \is_array($this->addDefaultChildren))) {
+                throw new InvalidDefinitionException(\sprintf('->addDefaultChildrenIfNoneSet() might not set default children names as ->useAttributeAsKey() is not used at path "%s".', $path));
+            }
+        }
+    }
+
+    /**
+     * @return NodeDefinition<$this>[]
+     */
+    public function getChildNodeDefinitions(): array
+    {
+        return $this->children;
+    }
+
+    /**
+     * Finds a node defined by the given $nodePath.
+     *
+     * @param string $nodePath The path of the node to find. e.g "doctrine.orm.mappings"
+     */
+    public function find(string $nodePath): NodeDefinition
+    {
+        $firstPathSegment = (false === $pathSeparatorPos = strpos($nodePath, $this->pathSeparator))
+            ? $nodePath
+            : substr($nodePath, 0, $pathSeparatorPos);
+
+        if (null === $node = ($this->children[$firstPathSegment] ?? null)) {
+            throw new \RuntimeException(\sprintf('Node with name "%s" does not exist in the current node "%s".', $firstPathSegment, $this->name));
+        }
+
+        if (false === $pathSeparatorPos) {
+            return $node;
+        }
+
+        return $node->find(substr($nodePath, $pathSeparatorPos + \strlen($this->pathSeparator)));
+    }
+}

backend/vendor/symfony/config/Definition/Builder/BooleanNodeDefinition.php

@@ -0,0 +1,60 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\BooleanNode;
+use Symfony\Component\Config\Definition\Exception\InvalidDefinitionException;
+
+/**
+ * This class provides a fluent interface for defining a node.
+ *
+ * @template TParent of NodeParentInterface|null
+ *
+ * @extends ScalarNodeDefinition<TParent>
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class BooleanNodeDefinition extends ScalarNodeDefinition
+{
+    /**
+     * @param TParent $parent
+     */
+    public function __construct(?string $name, ?NodeParentInterface $parent = null)
+    {
+        parent::__construct($name, $parent);
+
+        $this->nullEquivalent = true;
+    }
+
+    protected function instantiateNode(): BooleanNode
+    {
+        return new BooleanNode($this->name, $this->parent, $this->pathSeparator, null === $this->nullEquivalent);
+    }
+
+    /**
+     * @throws InvalidDefinitionException
+     */
+    public function cannotBeEmpty(): static
+    {
+        throw new InvalidDefinitionException('->cannotBeEmpty() is not applicable to BooleanNodeDefinition.');
+    }
+
+    /**
+     * @return $this
+     */
+    public function defaultValue(mixed $value): static
+    {
+        $this->nullEquivalent = null === $value ? null : true;
+
+        return parent::defaultValue($value);
+    }
+}

backend/vendor/symfony/config/Definition/Builder/BuilderAwareInterface.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * An interface that can be implemented by nodes which build other nodes.
+ *
+ * @author Roland Franssen <franssen.roland@gmail.com>
+ */
+interface BuilderAwareInterface
+{
+    /**
+     * Sets a custom children builder.
+     *
+     * @param NodeBuilder<static> $builder
+     */
+    public function setBuilder(NodeBuilder $builder): void;
+}

backend/vendor/symfony/config/Definition/Builder/EnumNodeDefinition.php

@@ -0,0 +1,75 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\EnumNode;
+
+/**
+ * Enum Node Definition.
+ *
+ * @template TParent of NodeParentInterface|null
+ *
+ * @extends ScalarNodeDefinition<TParent>
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class EnumNodeDefinition extends ScalarNodeDefinition
+{
+    private array $values;
+    private string $enumFqcn;
+
+    /**
+     * @return $this
+     */
+    public function values(array $values): static
+    {
+        if (!$values) {
+            throw new \InvalidArgumentException('->values() must be called with at least one value.');
+        }
+
+        $this->values = $values;
+
+        return $this;
+    }
+
+    /**
+     * @param class-string<\UnitEnum> $enumFqcn
+     *
+     * @return $this
+     */
+    public function enumFqcn(string $enumFqcn): static
+    {
+        if (!enum_exists($enumFqcn)) {
+            throw new \InvalidArgumentException(\sprintf('The enum class "%s" does not exist.', $enumFqcn));
+        }
+
+        $this->enumFqcn = $enumFqcn;
+
+        return $this;
+    }
+
+    /**
+     * @throws \RuntimeException when no values or enumFqcn is set
+     */
+    protected function instantiateNode(): EnumNode
+    {
+        if (!isset($this->values) && !isset($this->enumFqcn)) {
+            throw new \RuntimeException('You must call either ->values() or ->enumFqcn() on enum nodes.');
+        }
+
+        if (isset($this->values) && isset($this->enumFqcn)) {
+            throw new \RuntimeException('You must call either ->values() or ->enumFqcn() on enum nodes but not both.');
+        }
+
+        return new EnumNode($this->name, $this->parent, $this->values ?? [], $this->pathSeparator, $this->enumFqcn ?? null);
+    }
+}