feat(mcp) : add CRUD tools for Pieces, Composants, Machines

- 5 tools each: list, get, create, update, delete
- Piece: includes typePiece, constructeurs, prix (string)
- Composant: includes typeComposant, constructeurs, prix (string)
- Machine: includes site (required), constructeurs
- 40 MCP tests pass total

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

src/Mcp/Tool/Machine/UpdateMachineTool.php

@@ -0,0 +1,85 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Mcp\Tool\Machine;
+
+use App\Mcp\Tool\McpToolHelper;
+use App\Repository\ConstructeurRepository;
+use App\Repository\MachineRepository;
+use App\Repository\SiteRepository;
+use Doctrine\ORM\EntityManagerInterface;
+use Mcp\Capability\Attribute\McpTool;
+use Symfony\Bundle\SecurityBundle\Security;
+
+#[McpTool(
+    name: 'update_machine',
+    description: 'Update an existing machine. Only provided fields are changed. prix must be a string. Requires ROLE_GESTIONNAIRE.',
+)]
+class UpdateMachineTool
+{
+    use McpToolHelper;
+
+    public function __construct(
+        private readonly MachineRepository $machines,
+        private readonly EntityManagerInterface $em,
+        private readonly Security $security,
+        private readonly SiteRepository $sites,
+        private readonly ConstructeurRepository $constructeurs,
+    ) {}
+
+    /**
+     * @param null|string[] $constructeurIds
+     */
+    public function __invoke(
+        string $machineId,
+        ?string $name = null,
+        ?string $reference = null,
+        ?string $prix = null,
+        ?string $siteId = null,
+        ?array $constructeurIds = null,
+    ): array {
+        $this->requireRole($this->security, 'ROLE_GESTIONNAIRE');
+
+        $machine = $this->machines->find($machineId);
+
+        if (!$machine) {
+            $this->mcpError('not_found', "Machine not found: {$machineId}");
+        }
+
+        if (null !== $name) {
+            $machine->setName($name);
+        }
+        if (null !== $reference) {
+            $machine->setReference($reference);
+        }
+        if (null !== $prix) {
+            $machine->setPrix($prix);
+        }
+
+        if (null !== $siteId) {
+            $site = $this->sites->find($siteId);
+            if (!$site) {
+                $this->mcpError('not_found', "Site not found: {$siteId}");
+            }
+            $machine->setSite($site);
+        }
+
+        if (null !== $constructeurIds) {
+            foreach ($machine->getConstructeurs()->toArray() as $existing) {
+                $machine->removeConstructeur($existing);
+            }
+            foreach ($constructeurIds as $cId) {
+                $c = $this->constructeurs->find($cId);
+                if (!$c) {
+                    $this->mcpError('not_found', "Constructeur not found: {$cId}");
+                }
+                $machine->addConstructeur($c);
+            }
+        }
+
+        $this->em->flush();
+
+        return $this->jsonResponse(['id' => $machine->getId(), 'name' => $machine->getName()]);
+    }
+}