feat: 결재·마스터 실연동 업데이트

lib/features/approvals/history/presentation/controllers/approval_history_controller.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/foundation.dart';
 import 'package:superport_v2/core/common/models/paginated_result.dart';
+import 'package:superport_v2/core/network/failure.dart';
 
 import '../../domain/entities/approval_history_record.dart';
 import '../../domain/repositories/approval_history_repository.dart';
@@ -59,8 +60,9 @@ class ApprovalHistoryController extends ChangeNotifier {
       );
       _result = response;
       _pageSize = response.pageSize;
-    } catch (e) {
-      _errorMessage = e.toString();
+    } catch (error) {
+      final failure = Failure.from(error);
+      _errorMessage = failure.describe();
     } finally {
       _isLoading = false;
       notifyListeners();