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

lib/features/inventory/summary/presentation/pages/inventory_summary_page.dart

@@ -7,7 +7,7 @@ import 'package:lucide_icons_flutter/lucide_icons.dart' as lucide;
 import 'package:shadcn_ui/shadcn_ui.dart';
 
 import '../../../../../core/common/models/paginated_result.dart';
-import '../../../../../core/constants/app_sections.dart';
+import '../../../../../core/navigation/route_paths.dart';
 import '../../../../../widgets/app_layout.dart';
 import '../../../../../widgets/components/filter_bar.dart';
 import '../../../../../widgets/components/form_field.dart';
@@ -434,17 +434,17 @@ class _InventorySummaryPageState extends State<InventorySummaryPage> {
       padding: const EdgeInsets.all(0),
       child: SizedBox(
         width: double.infinity,
-        child: SuperportTable.fromCells(
+        child: SuperportTable(
           rowHeight: widget.debugRowHeight ?? 72,
-          header: const [
-            ShadTableCell.header(child: Text('#')),
-            ShadTableCell.header(child: Text('제품명 / 코드')),
-            ShadTableCell.header(child: Text('벤더')),
-            ShadTableCell.header(child: Text('총 수량')),
-            ShadTableCell.header(child: Text('최근 변동')),
-            ShadTableCell.header(child: Text('업데이트')),
+          columns: const [
+            Text('#'),
+            Text('제품명 / 코드'),
+            Text('벤더'),
+            Text('총 수량'),
+            Text('최근 변동'),
+            Text('업데이트'),
           ],
-          rows: rows,
+          rows: rows.map((cells) => cells.cast<Widget>()).toList(),
           columnSpanExtent: _columnSpanForIndex,
           sortableColumns: _columnSortKeys.keys.toSet(),
           sortState: _sortState,