backup: 사용하지 않는 파일 삭제 전 복구 지점

- 전체 371개 파일 중 82개 미사용 파일 식별
- Phase 1: 33개 파일 삭제 예정 (100% 안전)
- Phase 2: 30개 파일 삭제 검토 예정
- Phase 3: 19개 파일 수동 검토 예정

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

lib/data/repositories/maintenance_repository_impl.dart

@@ -0,0 +1,115 @@
+import 'package:injectable/injectable.dart';
+import 'package:superport/core/errors/exceptions.dart';
+import 'package:superport/core/errors/failures.dart';
+import 'package:superport/data/datasources/remote/maintenance_remote_datasource.dart';
+import 'package:superport/data/models/maintenance_dto.dart';
+import 'package:superport/data/repositories/maintenance_repository.dart';
+
+@LazySingleton(as: MaintenanceRepository)
+class MaintenanceRepositoryImpl implements MaintenanceRepository {
+  final MaintenanceRemoteDataSource _remoteDataSource;
+
+  MaintenanceRepositoryImpl({
+    required MaintenanceRemoteDataSource remoteDataSource,
+  }) : _remoteDataSource = remoteDataSource;
+
+  @override
+  Future<MaintenanceListResponse> getMaintenances({
+    int page = 1,
+    int perPage = 20,
+    int? equipmentId,
+    String? maintenanceType,
+    bool? isExpired,
+    int? expiringDays,
+    bool includeDeleted = false,
+  }) async {
+    try {
+      return await _remoteDataSource.getMaintenances(
+        page: page,
+        perPage: perPage,
+        equipmentId: equipmentId,
+        maintenanceType: maintenanceType,
+        isExpired: isExpired,
+        expiringDays: expiringDays,
+        includeDeleted: includeDeleted,
+      );
+    } on ServerException catch (e) {
+      throw ServerFailure(
+        message: e.message,
+        statusCode: e.statusCode,
+      );
+    } catch (e) {
+      throw ServerFailure(message: '유지보수 목록 조회 중 오류가 발생했습니다');
+    }
+  }
+
+  @override
+  Future<MaintenanceDto> getMaintenanceDetail(int id) async {
+    try {
+      return await _remoteDataSource.getMaintenanceDetail(id);
+    } on ServerException catch (e) {
+      throw ServerFailure(
+        message: e.message,
+        statusCode: e.statusCode,
+      );
+    } catch (e) {
+      throw ServerFailure(message: '유지보수 상세 조회 중 오류가 발생했습니다');
+    }
+  }
+
+  @override
+  Future<MaintenanceDto> createMaintenance(MaintenanceRequestDto request) async {
+    try {
+      return await _remoteDataSource.createMaintenance(request);
+    } on ServerException catch (e) {
+      throw ServerFailure(
+        message: e.message,
+        statusCode: e.statusCode,
+      );
+    } catch (e) {
+      throw ServerFailure(message: '유지보수 생성 중 오류가 발생했습니다');
+    }
+  }
+
+  @override
+  Future<MaintenanceDto> updateMaintenance(int id, MaintenanceUpdateRequestDto request) async {
+    try {
+      return await _remoteDataSource.updateMaintenance(id, request);
+    } on ServerException catch (e) {
+      throw ServerFailure(
+        message: e.message,
+        statusCode: e.statusCode,
+      );
+    } catch (e) {
+      throw ServerFailure(message: '유지보수 수정 중 오류가 발생했습니다');
+    }
+  }
+
+  @override
+  Future<void> deleteMaintenance(int id) async {
+    try {
+      return await _remoteDataSource.deleteMaintenance(id);
+    } on ServerException catch (e) {
+      throw ServerFailure(
+        message: e.message,
+        statusCode: e.statusCode,
+      );
+    } catch (e) {
+      throw ServerFailure(message: '유지보수 삭제 중 오류가 발생했습니다');
+    }
+  }
+
+  @override
+  Future<List<MaintenanceDto>> getExpiringMaintenances({int days = 30}) async {
+    try {
+      return await _remoteDataSource.getExpiringMaintenances(days: days);
+    } on ServerException catch (e) {
+      throw ServerFailure(
+        message: e.message,
+        statusCode: e.statusCode,
+      );
+    } catch (e) {
+      throw ServerFailure(message: '만료 예정 유지보수 조회 중 오류가 발생했습니다');
+    }
+  }
+}