refactor(splash): 简化开屏动画为纯帧播放，恢复监控Tab

- 重构 splash_page.dart: 移除 video_player 依赖，改用纯帧动画播放
- 帧数从53张调整为36张，添加预加载优化
- 移除 pubspec.yaml 中的 video_player 依赖
- 恢复底部导航栏"监控"Tab（原"矿机"）
- 调整路由索引：0-龙虎榜, 1-监控, 2-兑换, 3-我
- 移除"我的"页面的"领取全部"按钮

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/mobile-app/lib/features/auth/presentation/pages/splash_page.dart

@@ -1,14 +1,13 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
-import 'package:video_player/video_player.dart';
 import '../../../../routes/route_paths.dart';
 import '../../../../routes/app_router.dart';
 import '../../../../bootstrap.dart';
 import '../providers/auth_provider.dart';
 
 /// 开屏页面 - 应用启动时显示的第一个页面
-/// 播放开屏视频，视频结束后检查用户认证状态并跳转
+/// 播放帧动画，动画结束后检查用户认证状态并跳转
 class SplashPage extends ConsumerStatefulWidget {
   const SplashPage({super.key});
 
@@ -17,11 +16,14 @@ class SplashPage extends ConsumerStatefulWidget {
 }
 
 class _SplashPageState extends ConsumerState<SplashPage> {
-  /// 视频播放控制器
-  VideoPlayerController? _videoController;
+  /// 帧动画总帧数
+  static const int _totalFrames = 36;
 
-  /// 视频是否已初始化
-  bool _isVideoInitialized = false;
+  /// 帧动画帧率 (fps)
+  static const int _frameRate = 15;
+
+  /// 当前显示的帧索引 (0-based)
+  int _currentFrameIndex = 0;
 
   /// 是否显示跳过按钮
   bool _showSkipButton = false;
@@ -29,117 +31,29 @@ class _SplashPageState extends ConsumerState<SplashPage> {
   /// 是否已经开始跳转（防止重复跳转）
   bool _isNavigating = false;
 
-  /// 视频加载是否失败（使用 fallback 动画）
-  bool _videoFailed = false;
-
-  /// 帧动画总帧数
-  static const int _totalFrames = 53;
-
-  /// 帧动画帧率 (fps)
-  static const int _frameRate = 15;
-
-  /// 当前显示的帧索引
-  int _currentFrameIndex = 0;
-
   /// 帧动画是否正在播放
-  bool _isFrameAnimationPlaying = false;
+  bool _isPlaying = true;
+
+  /// 预加载的图片缓存
+  final List<ImageProvider> _frameProviders = [];
 
   @override
   void initState() {
     super.initState();
-    _initializeVideo();
+    _initializeFrames();
   }
 
-  @override
-  void dispose() {
-    _videoController?.removeListener(_onVideoStateChanged);
-    _videoController?.dispose();
-    super.dispose();
-  }
-
-  /// 初始化视频播放器
-  Future<void> _initializeVideo() async {
-    debugPrint('[SplashPage] ========== 开始初始化视频 ==========');
-    debugPrint('[SplashPage] 视频路径: assets/videos/splash.mp4');
-
-    try {
-      // 从 assets 加载视频
-      debugPrint('[SplashPage] 创建 VideoPlayerController...');
-      _videoController = VideoPlayerController.asset('assets/videos/splash.mp4');
-
-      debugPrint('[SplashPage] 开始 initialize()...');
-      final stopwatch = Stopwatch()..start();
-      await _videoController!.initialize();
-      stopwatch.stop();
-      debugPrint('[SplashPage] initialize() 完成，耗时: ${stopwatch.elapsedMilliseconds}ms');
-
-      // 打印视频信息
-      final value = _videoController!.value;
-      debugPrint('[SplashPage] 视频信息:');
-      debugPrint('[SplashPage]   - 尺寸: ${value.size.width} x ${value.size.height}');
-      debugPrint('[SplashPage]   - 时长: ${value.duration.inMilliseconds}ms');
-      debugPrint('[SplashPage]   - 是否已初始化: ${value.isInitialized}');
-      debugPrint('[SplashPage]   - 是否有错误: ${value.hasError}');
-      if (value.hasError) {
-        debugPrint('[SplashPage]   - 错误信息: ${value.errorDescription}');
-      }
-
-      if (mounted) {
-        setState(() {
-          _isVideoInitialized = true;
-        });
-
-        // 设置视频播放完成监听
-        _videoController!.addListener(_onVideoStateChanged);
-
-        // 开始播放视频
-        debugPrint('[SplashPage] 开始播放视频...');
-        await _videoController!.play();
-        debugPrint('[SplashPage] play() 调用完成，isPlaying: ${_videoController!.value.isPlaying}');
-
-        // 1秒后显示跳过按钮
-        Future.delayed(const Duration(seconds: 1), () {
-          if (mounted) {
-            setState(() {
-              _showSkipButton = true;
-            });
-          }
-        });
-      }
-    } catch (e, stackTrace) {
-      debugPrint('[SplashPage] ========== 视频初始化失败 ==========');
-      debugPrint('[SplashPage] 错误类型: ${e.runtimeType}');
-      debugPrint('[SplashPage] 错误信息: $e');
-      debugPrint('[SplashPage] 堆栈跟踪:\n$stackTrace');
-
-      // 检查 controller 状态
-      if (_videoController != null) {
-        final value = _videoController!.value;
-        debugPrint('[SplashPage] Controller 状态:');
-        debugPrint('[SplashPage]   - 是否已初始化: ${value.isInitialized}');
-        debugPrint('[SplashPage]   - 是否有错误: ${value.hasError}');
-        if (value.hasError) {
-          debugPrint('[SplashPage]   - 错误描述: ${value.errorDescription}');
-        }
-      }
-
-      // 如果视频加载失败，启动 fallback 动画
-      _startFallbackAnimation();
+  /// 初始化帧动画
+  void _initializeFrames() {
+    // 创建所有帧的 ImageProvider（不会立即加载，只是创建引用）
+    for (int i = 1; i <= _totalFrames; i++) {
+      final frameNumber = i.toString().padLeft(3, '0');
+      final framePath = 'assets/images/splash_frames/frame_$frameNumber.png';
+      _frameProviders.add(AssetImage(framePath));
     }
-  }
-
-  /// 启动 fallback 帧动画（视频加载失败时使用）
-  void _startFallbackAnimation() {
-    debugPrint('[SplashPage] 启动 fallback 帧动画，共 $_totalFrames 帧');
-
-    setState(() {
-      _videoFailed = true;
-      _isFrameAnimationPlaying = true;
-      _currentFrameIndex = 0;
-    });
 
     // 启动帧动画播放
-    _playFrameAnimation();
+    _playAnimation();
 
     // 1秒后显示跳过按钮
     Future.delayed(const Duration(seconds: 1), () {
@@ -151,46 +65,51 @@ class _SplashPageState extends ConsumerState<SplashPage> {
     });
   }
 
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    // 预加载前几帧到内存，确保播放流畅
+    _precacheInitialFrames();
+  }
+
+  /// 预加载前几帧
+  void _precacheInitialFrames() {
+    // 预加载前5帧，确保启动时不卡顿
+    final framesToPrecache = _totalFrames < 5 ? _totalFrames : 5;
+    for (int i = 0; i < framesToPrecache; i++) {
+      precacheImage(_frameProviders[i], context);
+    }
+  }
+
   /// 播放帧动画
-  Future<void> _playFrameAnimation() async {
+  Future<void> _playAnimation() async {
     final frameDuration = Duration(milliseconds: 1000 ~/ _frameRate);
 
-    while (_isFrameAnimationPlaying && _currentFrameIndex < _totalFrames && mounted) {
+    while (_isPlaying && _currentFrameIndex < _totalFrames - 1 && mounted) {
       await Future.delayed(frameDuration);
 
-      if (!mounted || !_isFrameAnimationPlaying) break;
+      if (!mounted || !_isPlaying) break;
 
       setState(() {
         _currentFrameIndex++;
       });
+
+      // 预加载后续帧（提前2帧预加载）
+      final nextFrameIndex = _currentFrameIndex + 2;
+      if (nextFrameIndex < _totalFrames) {
+        precacheImage(_frameProviders[nextFrameIndex], context);
+      }
     }
 
     // 动画播放完成
-    if (_currentFrameIndex >= _totalFrames && mounted && _isFrameAnimationPlaying) {
+    if (_currentFrameIndex >= _totalFrames - 1 && mounted && _isPlaying) {
       _navigateToNextPage();
     }
   }
 
-  /// 跳过 fallback 帧动画
-  void _skipFallbackAnimation() {
-    _isFrameAnimationPlaying = false;
-    _navigateToNextPage();
-  }
-
-  /// 视频状态变化监听
-  void _onVideoStateChanged() {
-    if (_videoController == null) return;
-
-    // 视频播放完成
-    if (_videoController!.value.position >= _videoController!.value.duration &&
-        _videoController!.value.duration > Duration.zero) {
-      _navigateToNextPage();
-    }
-  }
-
-  /// 跳过视频
-  void _skipVideo() {
-    _videoController?.pause();
+  /// 跳过动画
+  void _skipAnimation() {
+    _isPlaying = false;
     _navigateToNextPage();
   }
 
@@ -249,24 +168,8 @@ class _SplashPageState extends ConsumerState<SplashPage> {
       body: Stack(
         fit: StackFit.expand,
         children: [
-          // 视频播放器（全屏覆盖）
-          if (_isVideoInitialized && _videoController != null)
-            SizedBox.expand(
-              child: FittedBox(
-                fit: BoxFit.cover,
-                child: SizedBox(
-                  width: _videoController!.value.size.width,
-                  height: _videoController!.value.size.height,
-                  child: VideoPlayer(_videoController!),
-                ),
-              ),
-            )
-          else if (_videoFailed)
-            // 视频加载失败，显示 fallback 动画
-            _buildFallbackAnimationView()
-          else
-            // 视频加载中显示 Logo
-            _buildLoadingView(),
+          // 帧动画（全屏覆盖）
+          _buildFrameAnimation(),
 
           // 跳过按钮
           if (_showSkipButton)
@@ -280,108 +183,13 @@ class _SplashPageState extends ConsumerState<SplashPage> {
     );
   }
 
-  /// 构建加载中视图（视频未加载完成时显示）
-  Widget _buildLoadingView() {
-    return Container(
-      width: double.infinity,
-      height: double.infinity,
-      decoration: const BoxDecoration(
-        gradient: LinearGradient(
-          begin: Alignment.topCenter,
-          end: Alignment.bottomCenter,
-          colors: [
-            Color(0xFFFFF5E6),
-            Color(0xFFFFE4B5),
-          ],
-        ),
-      ),
-      child: Column(
-        mainAxisAlignment: MainAxisAlignment.center,
-        children: [
-          // Logo
-          Image.asset(
-            'assets/images/logo/app_icon.png',
-            width: 128,
-            height: 128,
-          ),
-          const SizedBox(height: 24),
-          const Text(
-            '榴莲皇后',
-            style: TextStyle(
-              fontSize: 32,
-              fontFamily: 'Noto Sans SC',
-              fontWeight: FontWeight.w700,
-              height: 1.25,
-              letterSpacing: 1.6,
-              color: Color(0xFF4A3F35),
-            ),
-          ),
-          const SizedBox(height: 24),
-          // 加载指示器
-          const SizedBox(
-            width: 24,
-            height: 24,
-            child: CircularProgressIndicator(
-              strokeWidth: 2,
-              valueColor: AlwaysStoppedAnimation<Color>(Color(0xFFD4AF37)),
-            ),
-          ),
-        ],
-      ),
-    );
-  }
-
-  /// 构建 fallback 帧动画视图（视频加载失败时使用）
-  Widget _buildFallbackAnimationView() {
-    // 帧文件名格式: frame_001.png, frame_002.png, ... frame_053.png
-    final frameNumber = (_currentFrameIndex + 1).toString().padLeft(3, '0');
-    final framePath = 'assets/images/splash_frames/frame_$frameNumber.png';
-
+  /// 构建帧动画视图
+  Widget _buildFrameAnimation() {
     return SizedBox.expand(
-      child: Image.asset(
-        framePath,
+      child: Image(
+        image: _frameProviders[_currentFrameIndex],
         fit: BoxFit.cover,
         gaplessPlayback: true, // 关键：防止帧切换时闪烁
-        errorBuilder: (context, error, stackTrace) {
-          // 帧加载失败时显示静态 fallback
-          debugPrint('[SplashPage] 帧加载失败: $framePath, 错误: $error');
-          return Container(
-            width: double.infinity,
-            height: double.infinity,
-            decoration: const BoxDecoration(
-              gradient: LinearGradient(
-                begin: Alignment.topCenter,
-                end: Alignment.bottomCenter,
-                colors: [
-                  Color(0xFFFFF5E6),
-                  Color(0xFFFFE4B5),
-                ],
-              ),
-            ),
-            child: Column(
-              mainAxisAlignment: MainAxisAlignment.center,
-              children: [
-                Image.asset(
-                  'assets/images/logo/app_icon.png',
-                  width: 128,
-                  height: 128,
-                ),
-                const SizedBox(height: 24),
-                const Text(
-                  '榴莲皇后',
-                  style: TextStyle(
-                    fontSize: 32,
-                    fontFamily: 'Noto Sans SC',
-                    fontWeight: FontWeight.w700,
-                    height: 1.25,
-                    letterSpacing: 1.6,
-                    color: Color(0xFF4A3F35),
-                  ),
-                ),
-              ],
-            ),
-          );
-        },
       ),
     );
   }
@@ -389,7 +197,7 @@ class _SplashPageState extends ConsumerState<SplashPage> {
   /// 构建跳过按钮
   Widget _buildSkipButton() {
     return GestureDetector(
-      onTap: _videoFailed ? _skipFallbackAnimation : _skipVideo,
+      onTap: _skipAnimation,
       child: Container(
         padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
         decoration: BoxDecoration(

frontend/mobile-app/lib/features/home/presentation/pages/home_shell_page.dart

@@ -60,27 +60,27 @@ class _HomeShellPageState extends ConsumerState<HomeShellPage>
 
   int _getCurrentIndex(BuildContext context) {
     final location = GoRouterState.of(context).uri.path;
-    // 矿机Tab暂时隐藏，索引调整为: 0-龙虎榜, 1-兑换, 2-我
+    // 索引: 0-龙虎榜, 1-监控, 2-兑换, 3-我
     if (location.startsWith(RoutePaths.ranking)) return 0;
-    // if (location.startsWith(RoutePaths.mining)) return 1;  // 矿机暂时隐藏
-    if (location.startsWith(RoutePaths.trading)) return 1;
-    if (location.startsWith(RoutePaths.profile)) return 2;
+    if (location.startsWith(RoutePaths.mining)) return 1;
+    if (location.startsWith(RoutePaths.trading)) return 2;
+    if (location.startsWith(RoutePaths.profile)) return 3;
     return 0;
   }
 
   void _onTabTapped(BuildContext context, int index) {
-    // 矿机Tab暂时隐藏，索引调整为: 0-龙虎榜, 1-兑换, 2-我
+    // 索引: 0-龙虎榜, 1-监控, 2-兑换, 3-我
     switch (index) {
       case 0:
         context.go(RoutePaths.ranking);
         break;
-      // case 1:  // 矿机暂时隐藏
-      //   context.go(RoutePaths.mining);
-      //   break;
       case 1:
-        context.go(RoutePaths.trading);
+        context.go(RoutePaths.mining);
         break;
       case 2:
+        context.go(RoutePaths.trading);
+        break;
+      case 3:
         context.go(RoutePaths.profile);
         break;
     }

frontend/mobile-app/lib/features/home/presentation/widgets/bottom_nav_bar.dart

@@ -1,8 +1,7 @@
 import 'package:flutter/material.dart';
 
 /// 底部导航栏组件
-/// 包含三个Tab：龙虎榜、兑换、我
-/// 注意：矿机Tab暂时隐藏（未删除代码，方便后续恢复）
+/// 包含四个Tab：龙虎榜、监控、兑换、我
 /// 自定义设计风格，使用 LayoutBuilder 确保自适应
 class BottomNavBar extends StatelessWidget {
   final int currentIndex;
@@ -42,21 +41,20 @@ class BottomNavBar extends StatelessWidget {
               activeIcon: Icons.leaderboard,
               label: '龙虎榜',
             ),
-            // 矿机Tab暂时隐藏，保留代码方便后续恢复
-            // _buildNavItem(
-            //   index: 1,
-            //   icon: Icons.memory_outlined,
-            //   activeIcon: Icons.memory,
-            //   label: '矿机',
-            // ),
             _buildNavItem(
-              index: 1,  // 原 index: 2
+              index: 1,
+              icon: Icons.monitor_heart_outlined,
+              activeIcon: Icons.monitor_heart,
+              label: '监控',
+            ),
+            _buildNavItem(
+              index: 2,
               icon: Icons.swap_horiz_outlined,
               activeIcon: Icons.swap_horiz,
               label: '兑换',
             ),
             _buildNavItem(
-              index: 2,  // 原 index: 3
+              index: 3,
               icon: Icons.person_outline,
               activeIcon: Icons.person,
               label: '我',

frontend/mobile-app/lib/features/mining/presentation/pages/mining_page.dart

@@ -11,7 +11,7 @@ enum MiningStatus {
   paused,    // 已暂停
 }
 
-/// 矿机页面 - 显示挖矿状态和控制
+/// 监控页面 - 显示挖矿状态和控制
 /// 展示用户序列号、社区信息和挖矿开关
 class MiningPage extends ConsumerStatefulWidget {
   const MiningPage({super.key});
@@ -130,8 +130,8 @@ class _MiningPageState extends ConsumerState<MiningPage> {
     showDialog(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('矿机说明'),
-        content: const Text('矿机是您参与挖矿的核心工具。\n\n'
+        title: const Text('监控说明'),
+        content: const Text('监控是您查看挖矿状态的工具。\n\n'
             '开启挖矿后，您将开始获得收益。\n\n'
             '收益与您的算力和团队规模相关。'),
         actions: [
@@ -217,7 +217,7 @@ class _MiningPageState extends ConsumerState<MiningPage> {
           // 标题
           const Expanded(
             child: Text(
-              '矿机',
+              '监控',
               style: TextStyle(
                 fontSize: 18,
                 fontFamily: 'Inter',

frontend/mobile-app/lib/features/profile/presentation/pages/profile_page.dart

@@ -1500,32 +1500,6 @@ class _ProfilePageState extends ConsumerState<ProfilePage> {
           // 奖励条目列表
           ...(_pendingRewards.map((item) => _buildPendingRewardItem(item))),
         ],
-        const SizedBox(height: 15),
-        // 领取全部按钮
-        GestureDetector(
-          onTap: _claimAllEarnings,
-          child: Container(
-            width: double.infinity,
-            height: 40,
-            decoration: BoxDecoration(
-              color: const Color(0xFFD4AF37),
-              borderRadius: BorderRadius.circular(8),
-            ),
-            child: const Center(
-              child: Text(
-                '领取全部',
-                style: TextStyle(
-                  fontSize: 14,
-                  fontFamily: 'Inter',
-                  fontWeight: FontWeight.w700,
-                  height: 1.5,
-                  letterSpacing: 0.21,
-                  color: Colors.white,
-                ),
-              ),
-            ),
-          ),
-        ),
       ],
     );
   }

frontend/mobile-app/pubspec.yaml

@@ -44,7 +44,6 @@ dependencies:
   mobile_scanner: ^5.1.1
   flutter_screenutil: ^5.9.0
   city_pickers: ^1.3.0
-  video_player: ^2.8.6
 
   # 工具
   intl: ^0.20.2