feat(menu-permissions): 메뉴 API 연동으로 사이드바 권한 정비

- .env.development.example과 lib/core/config/environment.dart, lib/core/permissions/permission_manager.dart에서 PERMISSION__ 폴백을 view 전용으로 좁히고 기본 정책을 명시적으로 거부하도록 재정비했다

- lib/core/navigation/*, lib/core/routing/app_router.dart, lib/widgets/app_shell.dart, lib/main.dart에서 메뉴 매니페스트·카탈로그를 도입해 /menus 응답을 캐싱하고 라우터·사이드바·Breadcrumb가 동일 menu_code/route_path를 쓰도록 리팩터링했다

- lib/core/permissions/permission_resources.dart와 그룹 권한/메뉴 마스터 모듈을 menu_code 기반 CRUD 및 Catalog 경로 정합성 검사로 전환하고 PermissionSynchronizer·PermissionBootstrapper를 확장했다

- test/helpers/test_permissions.dart, test/widgets/app_shell_test.dart 등 신규 구조를 반영하는 테스트·골든과 doc/frontend_menu_permission_tasks.md 문서를 보강했다

test/features/masters/menu/presentation/pages/menu_page_test.dart

@@ -7,6 +7,7 @@ import 'package:shadcn_ui/shadcn_ui.dart';
 
 import '../../../../../helpers/tester_extensions.dart';
 import 'package:superport_v2/core/common/models/paginated_result.dart';
+import 'package:superport_v2/core/navigation/menu_catalog.dart';
 import 'package:superport_v2/features/masters/menu/domain/entities/menu.dart';
 import 'package:superport_v2/features/masters/menu/domain/repositories/menu_repository.dart';
 import 'package:superport_v2/features/masters/menu/presentation/pages/menu_page.dart';
@@ -16,13 +17,21 @@ class _MockMenuRepository extends Mock implements MenuRepository {}
 class _FakeMenuInput extends Fake implements MenuInput {}
 
 Widget _buildApp(Widget child) {
+  final menuRepository = GetIt.I.isRegistered<MenuRepository>()
+      ? GetIt.I<MenuRepository>()
+      : _MockMenuRepository();
+  final catalog = MenuCatalog(repository: menuRepository);
+  addTearDown(catalog.dispose);
   return MaterialApp(
-    home: ShadTheme(
-      data: ShadThemeData(
-        colorScheme: const ShadSlateColorScheme.light(),
-        brightness: Brightness.light,
+    home: MenuCatalogScope(
+      catalog: catalog,
+      child: ShadTheme(
+        data: ShadThemeData(
+          colorScheme: const ShadSlateColorScheme.light(),
+          brightness: Brightness.light,
+        ),
+        child: Scaffold(body: child),
       ),
-      child: Scaffold(body: child),
     ),
   );
 }