feat: refactor code

test/widget_test.dart

@@ -1,9 +1,9 @@
 import 'package:flutter_test/flutter_test.dart';
-import 'package:hakemsho/features/lobby/wallet.dart';
+import 'package:hakemsho/feature/wallet/data/model/wallet_model.dart';
 
 void main() {
-  test('Wallet.fromJson parses server response', () {
-    final w = Wallet.fromJson(const {
+  test('WalletModel.fromJson parses wallet + user response', () {
+    final w = WalletModel.fromJson(const {
       'coins': 4560,
       'tickets': 3,
       'xp': 325,
@@ -13,18 +13,25 @@ void main() {
       'xp_for_next': 400,
       'vip': true,
       'selected_card': 'swiss',
+    }, const {
+      'first_name': 'امیر',
+      'avatar': 'hakem-3',
     });
     expect(w.coins, 4560);
     expect(w.tickets, 3);
     expect(w.level, 8);
     expect(w.vip, true);
     expect(w.selectedCard, 'swiss');
+    expect(w.name, 'امیر');
+    expect(w.avatar, 'hakem-3');
   });
 
-  test('Wallet.fromJson uses defaults for missing fields', () {
-    final w = Wallet.fromJson(const {});
+  test('WalletModel.fromJson uses defaults for missing fields', () {
+    final w = WalletModel.fromJson(const {}, const {});
     expect(w.coins, 0);
     expect(w.level, 1);
     expect(w.selectedCard, 'simple');
+    expect(w.name, 'بازیکن');
+    expect(w.avatar, 'hakem-1');
   });
 }