changed imports of AppLocalization

Also added beneficiary validation while quick pay within bank

lib/api/interceptors/auth_interceptor.dart

@@ -4,12 +4,12 @@ import '../../data/repositories/auth_repository.dart';
 class AuthInterceptor extends Interceptor {
   final AuthRepository _authRepository;
   final Dio _dio;
-  
+
   AuthInterceptor(this._authRepository, this._dio);
-  
+
   @override
   Future<void> onRequest(
-    RequestOptions options, 
+    RequestOptions options,
     RequestInterceptorHandler handler,
   ) async {
     // Skip auth header for login and refresh endpoints
@@ -17,31 +17,38 @@ class AuthInterceptor extends Interceptor {
         options.path.contains('/auth/refresh')) {
       return handler.next(options);
     }
-    
+
     // Get token and add to request
     final token = await _authRepository.getAccessToken();
     if (token != null) {
       options.headers['Authorization'] = 'Bearer $token';
     }
-    
+
     return handler.next(options);
   }
-  
+
   @override
   Future<void> onError(
-    DioException err, 
+    DioException err,
     ErrorInterceptorHandler handler,
   ) async {
     // Handle 401 errors by refreshing token and retrying
-    if (err.response?.statusCode == 401) {
+    final response = err.response;
+    if (response?.statusCode == 401) {
+      final data = response?.data;
+      // Only refresh token if error is NOT INCORRECT_TPIN (or similar business error)
+      if (data is Map && data['error'] == 'INCORRECT_TPIN') {
+        // Pass the error through, do not retry
+        return handler.next(err);
+      }
       // On 401, try to get a new token
       final token = await _authRepository.getAccessToken();
-      
+
       if (token != null) {
         // If we have a new token, retry the request
         final opts = err.requestOptions;
         opts.headers['Authorization'] = 'Bearer $token';
-        
+
         try {
           final response = await _dio.fetch(opts);
           return handler.resolve(response);
@@ -50,7 +57,7 @@ class AuthInterceptor extends Interceptor {
         }
       }
     }
-    
+
     return handler.next(err);
   }
-}
+}

lib/api/services/beneficiary_service.dart

@@ -0,0 +1,25 @@
+import 'package:dio/dio.dart';
+
+class BeneficiaryService {
+  final Dio _dio;
+
+  BeneficiaryService(this._dio);
+
+  Future<String> validateBeneficiaryWithinBank(String accountNumber) async {
+    try {
+      final response = await _dio.get('/api/beneficiary/validate/within-bank', queryParameters: {
+        'accountNumber': accountNumber,
+      });
+
+      if (response.statusCode == 200) {
+        return response.data['name'];
+      } else {
+        throw Exception(response.data['error'] ?? 'Failed to validate beneficiary');
+      }
+    } on DioException catch (e) {
+      throw Exception('Network error: ${e.message}');
+    } catch (e) {
+      throw Exception('Unexpected error: ${e.toString()}');
+    }
+  }
+}

lib/api/services/payment_service.dart

@@ -11,8 +11,8 @@ class PaymentService {
   Future<PaymentResponse> processQuickPayWithinBank(Transfer transfer) async {
     try {
       await Future.delayed(const Duration(seconds: 3)); // Simulate delay
-      final response =
-          await _dio.post('/api/payment/transfer', data: transfer.toJson());
+      
+      await _dio.post('/api/payment/transfer', data: transfer.toJson());
 
       return PaymentResponse(
         isSuccess: true,
@@ -20,8 +20,6 @@ class PaymentService {
         creditedAccount: transfer.toAccount,
         amount: transfer.amount,
         currency: "INR",
-        errorMessage: response.data['errorMessage'],
-        errorCode: response.data['errorCode'],
       );
     } on DioException catch (e) {
       log('DioException: ${e.toString()}');