fix：参考金值，研听，研值工程通用通用工程公共能力，重点对比网络请求、登录认证、状态管理、本地存储、WebView、推送、版本更新、一键登录、主题/UI 等模块，确定后续统一整改方案

lib/common/network/kratos_error_interceptor.dart

@@ -1,27 +1,16 @@
 import 'package:dio/dio.dart';
 
-import '../../models/pb/errors/errors.pb.dart' as kerrors;
+import 'api_exception.dart';
 
 class KratosErrorInterceptor extends Interceptor {
   @override
   void onError(DioException err, ErrorInterceptorHandler handler) {
-    final response = err.response;
-    final raw = response?.data;
-    if (response != null && raw is List<int> && raw.isNotEmpty) {
-      try {
-        final status = kerrors.Status.fromBuffer(raw);
-        if (status.code != 0 || status.reason.isNotEmpty) {
-          response.data = <String, dynamic>{
-            'code': status.code,
-            'reason': status.reason,
-            'message': status.message,
-            'metadata': status.metadata,
-          };
-        }
-      } catch (_) {
-        // A non-Kratos error body keeps its original representation.
-      }
+    if (err.error is ApiException) {
+      handler.next(err);
+      return;
     }
-    handler.next(err);
+    // Preserve response.data for diagnostics and retries. The parsed error is
+    // carried as DioException.error and normalized by ApiException.from().
+    handler.next(err.copyWith(error: ApiException.fromDio(err)));
   }
 }