feat(mcp) : tools update et delete des documents de tâche

Ajoute deux tools MCP sur le modèle de add-task-document :
- update-task-document : remplace le contenu et/ou renomme un document (MIME ré-inféré, taille rafraîchie, garde-fous vide/5 Mo)
- delete-task-document : supprime le document en base, le fichier disque étant retiré par le PreRemove listener

Met aussi à jour le compteur de tools MCP dans le CLAUDE.md (60).

src/Mcp/Tool/Task/DeleteTaskDocumentTool.php

@@ -0,0 +1,52 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Mcp\Tool\Task;
+
+use App\Entity\TaskDocument;
+use Doctrine\ORM\EntityManagerInterface;
+use InvalidArgumentException;
+use Mcp\Capability\Attribute\McpTool;
+use Symfony\Bundle\SecurityBundle\Security;
+use Symfony\Component\Security\Core\Exception\AccessDeniedException;
+
+use function sprintf;
+
+#[McpTool(name: 'delete-task-document', description: 'Delete a document attached to a task, permanently. The underlying file is also removed from disk.')]
+class DeleteTaskDocumentTool
+{
+    public function __construct(
+        private readonly EntityManagerInterface $entityManager,
+        private readonly Security $security,
+    ) {}
+
+    /**
+     * @param int $id ID of the task document to delete
+     */
+    public function __invoke(int $id): string
+    {
+        if (!$this->security->isGranted('ROLE_USER')) {
+            throw new AccessDeniedException('Access denied: ROLE_USER required.');
+        }
+
+        $document = $this->entityManager->find(TaskDocument::class, $id);
+        if (null === $document) {
+            throw new InvalidArgumentException(sprintf('Task document with ID %d not found.', $id));
+        }
+
+        $taskId       = $document->getTask()?->getId();
+        $originalName = $document->getOriginalName();
+
+        $this->entityManager->remove($document);
+        $this->entityManager->flush();
+
+        return json_encode([
+            'success'      => true,
+            'message'      => sprintf('Document "%s" (ID %d) deleted.', $originalName, $id),
+            'id'           => $id,
+            'taskId'       => $taskId,
+            'originalName' => $originalName,
+        ]);
+    }
+}

src/Mcp/Tool/Task/UpdateTaskDocumentTool.php

@@ -0,0 +1,108 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Mcp\Tool\Task;
+
+use App\Entity\TaskDocument;
+use Doctrine\ORM\EntityManagerInterface;
+use InvalidArgumentException;
+use Mcp\Capability\Attribute\McpTool;
+use Symfony\Bundle\SecurityBundle\Security;
+use Symfony\Component\Security\Core\Exception\AccessDeniedException;
+
+use function sprintf;
+use function strlen;
+
+#[McpTool(name: 'update-task-document', description: 'Update a document attached to a task: replace its text content and/or rename it. Pass the new raw content (verbatim UTF-8) and/or a new fileName. The MIME type is re-inferred from the fileName extension. At least one of content or fileName must be provided.')]
+class UpdateTaskDocumentTool
+{
+    private const MAX_CONTENT_SIZE = 5 * 1024 * 1024; // 5 MB of text
+
+    private const EXTENSION_TO_MIME = [
+        'md'       => 'text/markdown',
+        'markdown' => 'text/markdown',
+        'txt'      => 'text/plain',
+        'csv'      => 'text/csv',
+        'json'     => 'application/json',
+        'xml'      => 'text/xml',
+    ];
+
+    public function __construct(
+        private readonly EntityManagerInterface $entityManager,
+        private readonly Security $security,
+        private readonly string $uploadDir,
+    ) {}
+
+    /**
+     * @param int         $id       ID of the task document to update
+     * @param null|string $content  New raw text content of the document (e.g. Markdown). Omit to keep the current content.
+     * @param null|string $fileName New display name of the document, including extension. Omit to keep the current name.
+     */
+    public function __invoke(
+        int $id,
+        ?string $content = null,
+        ?string $fileName = null,
+    ): string {
+        if (!$this->security->isGranted('ROLE_USER')) {
+            throw new AccessDeniedException('Access denied: ROLE_USER required.');
+        }
+
+        if (null === $content && null === $fileName) {
+            throw new InvalidArgumentException('At least one of content or fileName must be provided.');
+        }
+
+        $document = $this->entityManager->find(TaskDocument::class, $id);
+        if (null === $document) {
+            throw new InvalidArgumentException(sprintf('Task document with ID %d not found.', $id));
+        }
+
+        // Rename: update the display name and re-infer the MIME type from its extension.
+        if (null !== $fileName) {
+            $originalName = trim($fileName);
+            if ('' === $originalName) {
+                throw new InvalidArgumentException('fileName cannot be empty.');
+            }
+
+            $extension = strtolower(pathinfo($originalName, PATHINFO_EXTENSION));
+            if ('' === $extension) {
+                $originalName .= '.md';
+                $extension = 'md';
+            }
+
+            $document->setOriginalName($originalName);
+            $document->setMimeType(self::EXTENSION_TO_MIME[$extension] ?? 'text/markdown');
+        }
+
+        // Replace content: overwrite the stored file in place and refresh its size.
+        if (null !== $content) {
+            if ('' === $content) {
+                throw new InvalidArgumentException('Document content cannot be empty.');
+            }
+
+            $size = strlen($content);
+            if ($size > self::MAX_CONTENT_SIZE) {
+                throw new InvalidArgumentException('Content size exceeds 5 MB limit.');
+            }
+
+            $filePath = $this->uploadDir.'/'.$document->getFileName();
+            if (false === file_put_contents($filePath, $content)) {
+                throw new InvalidArgumentException('Failed to write document to disk.');
+            }
+
+            $document->setSize($size);
+        }
+
+        $this->entityManager->flush();
+
+        return json_encode([
+            'id'           => $document->getId(),
+            'taskId'       => $document->getTask()?->getId(),
+            'originalName' => $document->getOriginalName(),
+            'mimeType'     => $document->getMimeType(),
+            'size'         => $document->getSize(),
+            'createdAt'    => $document->getCreatedAt()?->format('c'),
+            'uploadedBy'   => $document->getUploadedBy()?->getUsername(),
+        ]);
+    }
+}