결재 단계 목록 화면과 테스트 도입

lib/features/approvals/step/data/repositories/approval_step_repository_remote.dart

@@ -0,0 +1,51 @@
+import 'package:dio/dio.dart';
+
+import '../../../../core/common/models/paginated_result.dart';
+import '../../../../core/network/api_client.dart';
+import '../../domain/entities/approval_step_record.dart';
+import '../../domain/repositories/approval_step_repository.dart';
+import '../dtos/approval_step_record_dto.dart';
+
+class ApprovalStepRepositoryRemote implements ApprovalStepRepository {
+  ApprovalStepRepositoryRemote({required ApiClient apiClient})
+    : _api = apiClient;
+
+  final ApiClient _api;
+
+  static const _basePath = '/approval-steps';
+
+  @override
+  Future<PaginatedResult<ApprovalStepRecord>> list({
+    int page = 1,
+    int pageSize = 20,
+    String? query,
+    int? statusId,
+    int? approverId,
+    int? approvalId,
+  }) async {
+    final response = await _api.get<Map<String, dynamic>>(
+      _basePath,
+      query: {
+        'page': page,
+        'page_size': pageSize,
+        if (query != null && query.isNotEmpty) 'q': query,
+        if (statusId != null) 'status_id': statusId,
+        if (approverId != null) 'approver_id': approverId,
+        if (approvalId != null) 'approval_id': approvalId,
+      },
+      options: Options(responseType: ResponseType.json),
+    );
+
+    return ApprovalStepRecordDto.parsePaginated(response.data);
+  }
+
+  @override
+  Future<ApprovalStepRecord> fetchDetail(int id) async {
+    final response = await _api.get<Map<String, dynamic>>(
+      '$_basePath/$id',
+      options: Options(responseType: ResponseType.json),
+    );
+    final data = (response.data?['data'] as Map<String, dynamic>?) ?? const {};
+    return ApprovalStepRecordDto.fromJson(data).toEntity();
+  }
+}