optimize system and cleanup

src/Knowledge/Retrieval/CachedRetriever.php

@@ -1,48 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace App\Knowledge\Retrieval;
-
-use Psr\Cache\CacheItemPoolInterface;
-use Psr\Cache\InvalidArgumentException;
-
-final readonly class CachedRetriever implements RetrieverInterface
-{
-    public function __construct(
-        private RetrieverInterface     $inner,
-        private CacheItemPoolInterface $cache,
-        private int                    $ttlSeconds
-    )
-    {
-    }
-
-    /**
-     * @throws InvalidArgumentException
-     */
-    public function retrieve(string $prompt, int $limit = 10): array
-    {
-        $key = $this->buildCacheKey($prompt, $limit);
-
-        $item = $this->cache->getItem($key);
-        if ($item->isHit()) {
-            return $item->get();
-        }
-
-        $result = $this->inner->retrieve($prompt, $limit);
-
-        $item->set($result);
-        $item->expiresAfter($this->ttlSeconds);
-        $this->cache->save($item);
-
-        return $result;
-    }
-
-    private function buildCacheKey(string $prompt, int $limit): string
-    {
-        $normalized = mb_strtolower(trim($prompt));
-        $normalized = preg_replace('/\s+/u', ' ', $normalized);
-
-        return 'rag_retrieval_' . sha1($normalized . '|' . $limit);
-    }
-}