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/auth/get_current_user_usecase.dart

@@ -1,34 +1,17 @@
 import 'package:dartz/dartz.dart';
-import '../../../services/auth_service.dart';
-import '../../../data/models/user/user_dto.dart';
+import '../../repositories/auth_repository.dart';
+import '../../../data/models/auth/auth_user.dart';
 import '../../../core/errors/failures.dart';
 import '../base_usecase.dart';
 
-/// 현재 로그인한 사용자 정보 조회 UseCase
-class GetCurrentUserUseCase extends UseCase<UserDto?, NoParams> {
-  final AuthService _authService;
+/// 현재 로그인한 사용자 정보 조회 UseCase (AuthRepository 기반)
+class GetCurrentUserUseCase extends UseCase<AuthUser, NoParams> {
+  final AuthRepository _authRepository;
 
-  GetCurrentUserUseCase(this._authService);
+  GetCurrentUserUseCase(this._authRepository);
 
   @override
-  Future<Either<Failure, UserDto?>> call(NoParams params) async {
-    try {
-      final user = await _authService.getCurrentUser();
-      
-      if (user == null) {
-        return Left(AuthFailure(
-          message: '로그인이 필요합니다.',
-          code: 'NOT_AUTHENTICATED',
-        ));
-      }
-      
-      // AuthUser를 UserDto로 변환 (임시로 null 반환)
-      return const Right(null);
-    } catch (e) {
-      return Left(UnknownFailure(
-        message: '사용자 정보를 가져오는 중 오류가 발생했습니다.',
-        originalError: e,
-      ));
-    }
+  Future<Either<Failure, AuthUser>> call(NoParams params) async {
+    return await _authRepository.getCurrentUser();
   }
-}
+}

lib/domain/usecases/auth/logout_usecase.dart

@@ -1,17 +1,18 @@
 import 'package:dartz/dartz.dart';
-import '../../../services/auth_service.dart';
+import '../../repositories/auth_repository.dart';
 import '../../../core/errors/failures.dart';
 import '../base_usecase.dart';
 
 /// 로그아웃 UseCase
 /// 사용자 로그아웃 처리 및 토큰 삭제
 class LogoutUseCase extends UseCase<void, NoParams> {
-  final AuthService _authService;
+  // AuthRepository 기반으로 마이그레이션
+  final AuthRepository _authRepository;
 
-  LogoutUseCase(this._authService);
+  LogoutUseCase(this._authRepository);
 
   @override
   Future<Either<Failure, void>> call(NoParams params) async {
-    return await _authService.logout();
+    return await _authRepository.logout();
   }
-}
+}

lib/domain/usecases/auth/refresh_token_usecase.dart

@@ -1,56 +1,33 @@
 import 'package:dartz/dartz.dart';
-import 'package:dio/dio.dart';
-import '../../../services/auth_service.dart';
 import '../../../data/models/auth/token_response.dart';
+import '../../../data/models/auth/refresh_token_request.dart';
+import '../../repositories/auth_repository.dart';
 import '../../../core/errors/failures.dart';
 import '../base_usecase.dart';
 
 /// 토큰 갱신 UseCase
 /// JWT 토큰을 갱신하여 세션 유지
 class RefreshTokenUseCase extends UseCase<TokenResponse, NoParams> {
-  final AuthService _authService;
+  // AuthRepository 기반으로 마이그레이션
+  final AuthRepository _authRepository;
 
-  RefreshTokenUseCase(this._authService);
+  RefreshTokenUseCase(this._authRepository);
 
   @override
   Future<Either<Failure, TokenResponse>> call(NoParams params) async {
-    try {
-      final refreshToken = await _authService.getRefreshToken();
-      
-      if (refreshToken == null) {
-        return Left(AuthFailure(
-          message: '갱신 토큰이 없습니다. 다시 로그인해주세요.',
-          code: 'NO_REFRESH_TOKEN',
-        ));
-      }
-
-      return await _authService.refreshToken();
-    } on DioException catch (e) {
-      if (e.response?.statusCode == 401) {
-        return Left(AuthFailure(
-          message: '세션이 만료되었습니다. 다시 로그인해주세요.',
-          code: 'SESSION_EXPIRED',
-          originalError: e,
-        ));
-      } else if (e.type == DioExceptionType.connectionTimeout ||
-                 e.type == DioExceptionType.receiveTimeout) {
-        return Left(NetworkFailure(
-          message: '네트워크 연결 시간이 초과되었습니다.',
-          code: 'TIMEOUT',
-          originalError: e,
-        ));
-      } else {
-        return Left(ServerFailure(
-          message: '서버 오류가 발생했습니다.',
-          code: e.response?.statusCode?.toString(),
-          originalError: e,
-        ));
-      }
-    } catch (e) {
-      return Left(UnknownFailure(
-        message: '토큰 갱신 중 오류가 발생했습니다.',
-        originalError: e,
-      ));
-    }
+    final stored = await _authRepository.getStoredRefreshToken();
+    return await stored.fold(
+      (failure) => Left(failure),
+      (token) async {
+        if (token == null || token.isEmpty) {
+          return Left(AuthFailure(
+            message: '갱신 토큰이 없습니다. 다시 로그인해주세요.',
+            code: 'NO_REFRESH_TOKEN',
+          ));
+        }
+        final request = RefreshTokenRequest(refreshToken: token);
+        return await _authRepository.refreshToken(request);
+      },
+    );
   }
-}
+}