reset to setup module state

Remove Task Manager implementation to match `# Setup module` in module.md.
Backend src/ reduced to Kernel.php + empty Entity/, all migrations deleted,
database dropped and recreated. Frontend components/views/services/stores
removed, App.vue/router/style.css reduced to skeletons. CLAUDE.md shortened
to Setup-stand. Old backend/plan.md, plan2.md removed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

backend/src/Service/TaskSchemaManager.php

@@ -1,150 +0,0 @@
-<?php
-
-namespace App\Service;
-
-use App\DTO\Request\CreateSchemaRequest;
-use App\DTO\Request\UpdateSchemaRequest;
-use App\Entity\Task;
-use App\Entity\TaskSchema;
-use App\Enum\TaskSchemaStatus;
-use App\Enum\TaskSchemaType;
-use App\Repository\CategoryRepository;
-use App\Repository\TaskRepository;
-use Doctrine\ORM\EntityManagerInterface;
-
-class TaskSchemaManager
-{
-    public function __construct(
-        private EntityManagerInterface $em,
-        private CategoryRepository $categoryRepository,
-        private TaskRepository $taskRepository,
-        private TaskSynchronizer $taskSynchronizer,
-    ) {}
-
-    public function createSchema(CreateSchemaRequest $request): TaskSchema|array
-    {
-        $schema = new TaskSchema();
-        $schema->setName($request->name ?? '');
-
-        $this->applyFields($schema, $request);
-        $this->resolveCategory($schema, $request);
-        $this->applyDefaults($schema);
-
-        $this->em->persist($schema);
-        $this->em->flush();
-
-        if ($schema->getTaskType() === TaskSchemaType::Single) {
-            $tasks = $this->createSingleTasks($schema);
-            $this->em->remove($schema);
-            $this->em->flush();
-
-            return $tasks;
-        }
-
-        return $schema;
-    }
-
-    public function updateSchema(TaskSchema $schema, UpdateSchemaRequest $request): TaskSchema
-    {
-        if ($request->name !== null) {
-            $schema->setName($request->name);
-        }
-
-        $this->applyFields($schema, $request);
-        $this->resolveCategory($schema, $request);
-        $this->applyDefaults($schema);
-
-        $this->em->flush();
-
-        $this->taskSynchronizer->syncForSchema($schema);
-
-        return $schema;
-    }
-
-    public function deleteSchema(TaskSchema $schema, bool $deleteTasks = false): void
-    {
-        if ($deleteTasks) {
-            $tasks = $this->taskRepository->findBy(['schema' => $schema]);
-            foreach ($tasks as $task) {
-                $this->em->remove($task);
-            }
-        }
-
-        $this->em->remove($schema);
-        $this->em->flush();
-    }
-
-    private function applyFields(TaskSchema $schema, CreateSchemaRequest|UpdateSchemaRequest $request): void
-    {
-        if ($request->status !== null) {
-            $status = TaskSchemaStatus::tryFrom($request->status);
-            if ($status !== null) {
-                $schema->setStatus($status);
-            }
-        }
-
-        if ($request->type !== null) {
-            $taskType = TaskSchemaType::tryFrom($request->type);
-            if ($taskType !== null) {
-                $schema->setTaskType($taskType);
-            }
-        }
-
-        $schema->setStartDate($request->startDate !== null ? new \DateTime($request->startDate) : null);
-        $schema->setEndDate($request->endDate !== null ? new \DateTime($request->endDate) : null);
-        $schema->setDays($request->days);
-    }
-
-    private function resolveCategory(TaskSchema $schema, UpdateSchemaRequest|CreateSchemaRequest $request): void
-    {
-        if ($request instanceof UpdateSchemaRequest) {
-            if ($request->hasCategoryId) {
-                if ($request->categoryId !== null) {
-                    $category = $this->categoryRepository->find($request->categoryId);
-                    $schema->setCategory($category);
-                } else {
-                    $schema->setCategory(null);
-                }
-            }
-        } else {
-            if ($request->categoryId !== null) {
-                $category = $this->categoryRepository->find($request->categoryId);
-                $schema->setCategory($category);
-            }
-        }
-    }
-
-    private function applyDefaults(TaskSchema $schema): void
-    {
-        if ($schema->getTaskType() !== TaskSchemaType::Single && $schema->getStartDate() === null) {
-            $schema->setStartDate(new \DateTime('today'));
-        }
-    }
-
-    /**
-     * @return Task[]
-     */
-    private function createSingleTasks(TaskSchema $schema): array
-    {
-        $days = $schema->getDays()['year'] ?? [];
-        $tasks = [];
-
-        foreach ($days as $yd) {
-            $month = $yd['month'] ?? 1;
-            $day = $yd['day'] ?? 1;
-            $date = new \DateTime(sprintf('%d-%02d-%02d', (int) date('Y'), $month, $day));
-
-            $task = new Task();
-            $task->setName($schema->getName());
-            $task->setCategory($schema->getCategory());
-            $task->setDate($date);
-
-            $this->em->persist($task);
-            $tasks[] = $task;
-        }
-
-        $this->em->flush();
-
-        return $tasks;
-    }
-}