web: migrate health notifications to js_interop; add browser hook

- Replace dart:js with package:js in health_check_service_web.dart\n- Implement showHealthCheckNotification in web/index.html\n- Pin js dependency to ^0.6.7 for flutter_secure_storage_web compatibility

auth: harden AuthInterceptor + tests

- Allow overrideAuthRepository injection for testing\n- Normalize imports to package: paths\n- Add unit test covering token attach, 401→refresh→retry, and failure path\n- Add integration test skeleton gated by env vars

ui/data: map User.companyName to list column

- Add companyName to domain User\n- Map UserDto.company?.name\n- Render companyName in user_list

cleanup: remove legacy equipment table + unused code; minor warnings

- Remove _buildFlexibleTable and unused helpers\n- Remove unused zipcode details and cache retry constant\n- Fix null-aware and non-null assertions\n- Address child-last warnings in administrator dialog

docs: update AGENTS.md session context

lib/domain/usecases/company/toggle_company_status_usecase.dart

@@ -1,5 +1,5 @@
 import 'package:dartz/dartz.dart';
-import '../../../services/company_service.dart';
+import '../../repositories/company_repository.dart';
 import '../../../core/errors/failures.dart';
 import '../base_usecase.dart';
 
@@ -16,15 +16,20 @@ class ToggleCompanyStatusParams {
 
 /// 회사 활성화/비활성화 UseCase
 class ToggleCompanyStatusUseCase extends UseCase<void, ToggleCompanyStatusParams> {
-  final CompanyService _companyService;
+  // 레포지토리 기반으로 마이그레이션
+  final CompanyRepository _companyRepository;
 
-  ToggleCompanyStatusUseCase(this._companyService);
+  ToggleCompanyStatusUseCase(this._companyRepository);
 
   @override
   Future<Either<Failure, void>> call(ToggleCompanyStatusParams params) async {
     try {
-      await _companyService.updateCompanyStatus(params.id, params.isActive);
-      return const Right(null);
+      // 레포지토리는 토글 방식으로 동작하므로 결과만 확인
+      final result = await _companyRepository.toggleCompanyStatus(params.id);
+      return result.fold(
+        (failure) => Left(failure),
+        (_) => const Right(null),
+      );
     } on ServerFailure catch (e) {
       if (e.message.contains('equipment')) {
         return Left(ValidationFailure(
@@ -41,4 +46,4 @@ class ToggleCompanyStatusUseCase extends UseCase<void, ToggleCompanyStatusParams
       ));
     }
   }
-}
+}