백엔드 계약 문서 동기화하고 DTO 파서 정합성 확장

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

@@ -33,9 +33,13 @@ class ApprovalStepRepositoryRemote implements ApprovalStepRepository {
         'page': page,
         'page_size': pageSize,
         if (query != null && query.isNotEmpty) 'q': query,
-        if (statusId != null) 'status_id': statusId,
+        if (statusId != null) ...{
+          'status_id': statusId,
+          'step_status_id': statusId,
+        },
         if (approverId != null) 'approver_id': approverId,
         if (approvalId != null) 'approval_id': approvalId,
+        'include': 'approval,approver,step_status',
       },
       options: Options(responseType: ResponseType.json),
     );