AI 接入 V1.0

UI更新

lib/pages/bill/bill_home_page.dart

@@ -16,6 +16,7 @@ import 'bill_statistics_page.dart';
 import 'widgets/bill_group_card.dart';
 import 'widgets/budget_card.dart';
 import 'widgets/month_switcher.dart';
+import '../../widgets/cute_icon.dart';
 
 /// 记账模块的首页：月份切换 + 本月汇总 + 预算环 + 按日期分组的账单列表。
 ///
@@ -184,7 +185,7 @@ class BillHomePage extends ConsumerWidget {
       child: const Row(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
-          Text('🎯 ', style: TextStyle(fontSize: 14)),
+          CuteIcon('target', size: 15),
           Text(
             '仅可查看本月预算',
             style: TextStyle(fontSize: 13, color: Color(0xFF8D6E63)),