Phase 3 completed: Flutter MVP with live streaming and auto-refresh

frontend/lib/main.dart

@@ -0,0 +1,39 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:fvp/fvp.dart' as fvp; // 使用 as fvp 别名
+import 'providers/auth_provider.dart';
+import 'providers/settings_provider.dart';
+import 'pages/home_page.dart';
+import 'pages/login_page.dart';
+
+void main() {
+  // 初始化播放器引擎
+  fvp.registerWith();
+  
+  runApp(
+    MultiProvider(
+      providers: [
+        ChangeNotifierProvider(create: (_) => SettingsProvider()),
+        ChangeNotifierProvider(create: (_) => AuthProvider()),
+      ],
+      child: HightubeApp(),
+    ),
+  );
+}
+
+class HightubeApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    final auth = context.watch<AuthProvider>();
+
+    return MaterialApp(
+      title: 'Hightube',
+      theme: ThemeData(
+        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
+        useMaterial3: true,
+      ),
+      home: auth.isAuthenticated ? HomePage() : LoginPage(),
+      debugShowCheckedModeBanner: false,
+    );
+  }
+}