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/group_permission/presentation/pages/group_permission_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/core/permissions/permission_manager.dart';
 import 'package:superport_v2/features/masters/group/domain/entities/group.dart';
 import 'package:superport_v2/features/masters/group/domain/repositories/group_repository.dart';
@@ -26,15 +27,23 @@ class _MockMenuRepository extends Mock implements MenuRepository {}
 class _FakeGroupPermissionInput extends Fake implements GroupPermissionInput {}
 
 Widget _buildApp(Widget child) {
+  final menuRepository = GetIt.I.isRegistered<MenuRepository>()
+      ? GetIt.I<MenuRepository>()
+      : _MockMenuRepository();
+  final catalog = MenuCatalog(repository: menuRepository);
+  addTearDown(catalog.dispose);
   return PermissionScope(
     manager: PermissionManager(),
-    child: MaterialApp(
-      home: ShadTheme(
-        data: ShadThemeData(
-          colorScheme: const ShadSlateColorScheme.light(),
-          brightness: Brightness.light,
+    child: MenuCatalogScope(
+      catalog: catalog,
+      child: MaterialApp(
+        home: ShadTheme(
+          data: ShadThemeData(
+            colorScheme: const ShadSlateColorScheme.light(),
+            brightness: Brightness.light,
+          ),
+          child: Scaffold(body: child),
         ),
-        child: Scaffold(body: child),
       ),
     ),
   );
@@ -122,7 +131,7 @@ void main() {
           page: any(named: 'page'),
           pageSize: any(named: 'pageSize'),
           groupId: any(named: 'groupId'),
-          menuId: any(named: 'menuId'),
+          menuCode: any(named: 'menuCode'),
           isActive: any(named: 'isActive'),
           includeDeleted: any(named: 'includeDeleted'),
         ),
@@ -161,7 +170,7 @@ void main() {
           page: any(named: 'page'),
           pageSize: any(named: 'pageSize'),
           groupId: any(named: 'groupId'),
-          menuId: any(named: 'menuId'),
+          menuCode: any(named: 'menuCode'),
           isActive: any(named: 'isActive'),
           includeDeleted: any(named: 'includeDeleted'),
         ),
@@ -194,7 +203,7 @@ void main() {
           page: any(named: 'page'),
           pageSize: any(named: 'pageSize'),
           groupId: any(named: 'groupId'),
-          menuId: any(named: 'menuId'),
+          menuCode: any(named: 'menuCode'),
           isActive: any(named: 'isActive'),
           includeDeleted: any(named: 'includeDeleted'),
         ),
@@ -242,8 +251,8 @@ void main() {
             groupName: '관리자',
           ),
           menu: GroupPermissionMenu(
-            id: capturedInput!.menuId,
-            menuCode: 'DASHBOARD',
+            id: 10,
+            menuCode: capturedInput!.menuCode,
             menuName: '대시보드',
             path: '/dashboard',
           ),
@@ -292,7 +301,7 @@ void main() {
 
       expect(capturedInput, isNotNull);
       expect(capturedInput?.groupId, 1);
-      expect(capturedInput?.menuId, 10);
+      expect(capturedInput?.menuCode, 'MENU001');
       expect(capturedInput?.canCreate, isTrue);
       expect(capturedInput?.canUpdate, isTrue);
       expect(find.byType(Dialog), findsNothing);