tenant 제한 에러 처리 보안

userfront/lib/features/auth/domain/consent_error_routing.dart

@@ -1,5 +1,29 @@
+import 'dart:convert';
+
+import 'package:userfront/core/i18n/locale_utils.dart';
 import 'package:userfront/core/services/auth_proxy_service.dart';
 
-bool shouldRouteConsentErrorToErrorScreen(Object error) {
+bool shouldRouteTenantAccessErrorToErrorScreen(Object error) {
   return error is AuthProxyException && error.errorCode == 'tenant_not_allowed';
 }
+
+bool shouldRouteConsentErrorToErrorScreen(Object error) {
+  return shouldRouteTenantAccessErrorToErrorScreen(error);
+}
+
+String buildTenantAccessErrorPath(Object error, Uri baseUri) {
+  final authError = error as AuthProxyException;
+  final localeCode =
+      extractLocaleFromPath(baseUri) ?? resolvePreferredLocaleCode();
+  return buildLocalizedPath(
+    localeCode,
+    Uri(
+      path: '/error',
+      queryParameters: {
+        'error': authError.errorCode,
+        'error_description': authError.message,
+        if (authError.details != null) 'details': jsonEncode(authError.details),
+      },
+    ),
+  );
+}