feat(mcp) : add business tools — search, history, comments, custom fields, documents, model types

- search_inventory: global search across all 6 entity types
- get_entity_history + get_activity_log: audit trail access
- 4 comment tools: list, create, resolve, unresolved count
- 3 custom field tools: list values, upsert, delete
- 2 document tools: list, delete (upload via REST only)
- 6 model type tools: list, get, create, update, delete, sync
- 69 MCP tests pass total

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

tests/Mcp/Tool/Document/DocumentToolsTest.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Mcp\Tool\Document;
+
+use App\Tests\AbstractApiTestCase;
+
+/**
+ * @internal
+ */
+class DocumentToolsTest extends AbstractApiTestCase
+{
+    public function testListDocuments(): void
+    {
+        $site    = $this->createSite(name: 'Doc Site');
+        $session = $this->createMcpClient('ROLE_VIEWER');
+
+        $data = $this->callMcpTool($session, 'list_documents', [
+            'entityType' => 'site',
+            'entityId'   => $site->getId(),
+        ]);
+
+        $this->assertArrayHasKey('_parsed', $data);
+        $this->assertSame('site', $data['_parsed']['entityType']);
+        $this->assertSame($site->getId(), $data['_parsed']['entityId']);
+        $this->assertIsArray($data['_parsed']['items']);
+        $this->assertSame(0, $data['_parsed']['total']);
+    }
+
+    public function testDeleteDocumentRequiresGestionnaire(): void
+    {
+        $session = $this->createMcpClient('ROLE_VIEWER');
+
+        $data = $this->callMcpTool($session, 'delete_document', [
+            'documentId' => 'nonexistent-id',
+        ]);
+
+        $this->assertArrayHasKey('error', $data);
+    }
+}