refactor: 将前端从 uni-app x 重构为 Flutter

变更内容:
- 删除 uni-app x 项目 (app/ 目录)
- 新增 Flutter 项目 (flutter_monisuo/ 目录)
- 新增部署脚本 (deploy/ 目录)

Flutter 项目功能:
- 用户登录/注册
- 首页资产概览
- 行情币种列表
- 交易买卖操作
- 资产账户管理
- 充值/提现/划转
- 深色主题
- JWT Token 认证

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

flutter_monisuo/lib/main.dart

@@ -0,0 +1,96 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'core/constants/app_colors.dart';
+import 'core/network/dio_client.dart';
+import 'core/storage/local_storage.dart';
+import 'core/theme/app_theme.dart';
+import 'data/services/user_service.dart';
+import 'data/services/market_service.dart';
+import 'data/services/trade_service.dart';
+import 'data/services/asset_service.dart';
+import 'data/services/fund_service.dart';
+import 'providers/auth_provider.dart';
+import 'providers/market_provider.dart';
+import 'providers/asset_provider.dart';
+import 'ui/pages/auth/login_page.dart';
+import 'ui/pages/main/main_page.dart';
+
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+
+  // 初始化本地存储
+  final prefs = await SharedPreferences.getInstance();
+  await LocalStorage.init();
+
+  runApp(const MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MultiProvider(
+      providers: [
+        // 服务
+        Provider<DioClient>(create: (_) => DioClient()),
+        ProxyProvider<DioClient, UserService>(
+          create: (_) => throw UnimplementedError(),
+          update: (_, client) => UserService(client),
+        ),
+        ProxyProvider<DioClient, MarketService>(
+          create: (_) => throw UnimplementedError(),
+          update: (_, client) => MarketService(client),
+        ),
+        ProxyProvider<DioClient, TradeService>(
+          create: (_) => throw UnimplementedError(),
+          update: (_, client) => TradeService(client),
+        ),
+        ProxyProvider<DioClient, AssetService>(
+          create: (_) => throw UnimplementedError(),
+          update: (_, client) => AssetService(client),
+        ),
+        ProxyProvider<DioClient, FundService>(
+          create: (_) => throw UnimplementedError(),
+          update: (_, client) => FundService(client),
+        ),
+        // 状态管理
+        ProxyProvider2<UserService, DioClient, AuthProvider>(
+          create: (_) => throw UnimplementedError(),
+          update: (_, userService, __) => AuthProvider(userService),
+        ),
+        ProxyProvider<MarketService, MarketProvider>(
+          create: (_) => throw UnimplementedError(),
+          update: (_, service) => MarketProvider(service),
+        ),
+        ProxyProvider2<AssetService, FundService, AssetProvider>(
+          create: (_) => throw UnimplementedError(),
+          update: (_, assetService, fundService) => AssetProvider(assetService, fundService),
+        ),
+      ],
+      child: MaterialApp(
+        title: '模拟所',
+        debugShowCheckedModeBanner: false,
+        theme: AppTheme.darkTheme,
+        home: Consumer<AuthProvider>(
+          builder: (context, auth, _) {
+            if (auth.isLoading) {
+              return const Scaffold(
+                backgroundColor: AppColors.background,
+                body: Center(
+                  child: CircularProgressIndicator(color: AppColors.primary),
+                ),
+              );
+            }
+            if (auth.isLoggedIn) {
+              return const MainPage();
+            }
+            return const LoginPage();
+          },
+        ),
+      ),
+    );
+  }
+}