userfront i18n placeholder 치환과 번역 렌더링 오류 수정

userfront/lib/features/auth/presentation/reset_password_screen.dart

@@ -26,6 +26,18 @@ class _ResetPasswordScreenState extends State<ResetPasswordScreen> {
   Map<String, dynamic>? _policy;
   bool _isPolicyLoading = false;
 
+  String _renderTranslatedText(
+    String key, {
+    String? fallback,
+    Map<String, String> values = const {},
+  }) {
+    var text = tr(key, fallback: fallback);
+    values.forEach((name, value) {
+      text = text.replaceAll('{{$name}}', value).replaceAll('{$name}', value);
+    });
+    return text;
+  }
+
   @override
   void initState() {
     super.initState();
@@ -123,16 +135,16 @@ class _ResetPasswordScreenState extends State<ResetPasswordScreen> {
     final requiresSymbol = _policy?['nonAlphanumeric'] ?? true;
 
     final parts = <String>[
-      tr(
+      _renderTranslatedText(
         'msg.userfront.reset.policy.min_length',
-        params: {'count': '$minLength'},
+        values: {'count': '$minLength'},
       ),
     ];
     if (minTypes > 0) {
       parts.add(
-        tr(
+        _renderTranslatedText(
           'msg.userfront.reset.policy.min_types',
-          params: {'count': '$minTypes'},
+          values: {'count': '$minTypes'},
         ),
       );
     }