feat(mining-app): 集成 telemetry 遥测功能

- TelemetryService 添加 _accessToken 字段和 setAccessToken() 方法
- _getAuthHeaders() 现在返回 Bearer token 供心跳上报使用
- splash_page.dart: 启动时初始化 TelemetryService，已登录用户自动注入 userId 和 token
- user_providers.dart: 登录成功后注入 userId/token 并恢复上报；退出时暂停上报并清除 token；token 刷新时同步更新 telemetry token

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

frontend/mining-app/lib/core/telemetry/telemetry_service.dart

@@ -61,6 +61,8 @@ class TelemetryService {
   String? _userId;
   String? get userId => _userId;
 
+  String? _accessToken;
+
   bool _isInitialized = false;
   bool get isInitialized => _isInitialized;
 
@@ -148,7 +150,12 @@ class TelemetryService {
   }
 
   Map<String, String> _getAuthHeaders() {
-    return {};
+    if (_accessToken == null) return {};
+    return {'Authorization': 'Bearer $_accessToken'};
+  }
+
+  void setAccessToken(String? token) {
+    _accessToken = token;
   }
 
   void logEvent(

frontend/mining-app/lib/presentation/pages/splash/splash_page.dart

@@ -2,6 +2,8 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 import '../../../core/router/routes.dart';
+import '../../../core/config/environment.dart';
+import '../../../core/telemetry/telemetry_service.dart';
 import '../../providers/user_providers.dart';
 
 class SplashPage extends ConsumerStatefulWidget {
@@ -32,6 +34,19 @@ class _SplashPageState extends ConsumerState<SplashPage> {
 
     final userState = ref.read(userNotifierProvider);
 
+    // 初始化遥测服务（非阻塞，异常不影响主流程）
+    TelemetryService().initialize(
+      apiBaseUrl: EnvironmentConfig.baseUrl,
+      context: context,
+      userId: userState.isLoggedIn ? userState.accountSequence : null,
+    ).then((_) {
+      if (userState.isLoggedIn && userState.accessToken != null) {
+        TelemetryService().setAccessToken(userState.accessToken);
+      }
+    }).catchError((e) {
+      debugPrint('[Telemetry] Initialize failed (non-blocking): $e');
+    });
+
     if (userState.isLoggedIn) {
       // 已登录，直接跳转，不需要主动刷新 token
       // token 刷新只在 API 返回 401 时才触发
@@ -39,7 +54,7 @@ class _SplashPageState extends ConsumerState<SplashPage> {
         context.go(Routes.trading);
       }
     } else {
-      context.go(Routes.login);
+      if (mounted) context.go(Routes.login);
     }
   }
 

frontend/mining-app/lib/presentation/providers/user_providers.dart

@@ -3,6 +3,7 @@ import 'package:shared_preferences/shared_preferences.dart';
 import '../../data/datasources/remote/auth_remote_datasource.dart';
 import '../../data/models/capability_model.dart';
 import '../../core/di/injection.dart';
+import '../../core/telemetry/telemetry_service.dart';
 
 class UserState {
   final String? accountSequence;
@@ -174,6 +175,9 @@ class UserNotifier extends StateNotifier<UserState> {
         isLoggedIn: true,
         isLoading: false,
       );
+      TelemetryService().setUserId(result.user.accountSequence);
+      TelemetryService().setAccessToken(result.accessToken);
+      TelemetryService().resumeAfterLogin();
       // 登录后获取详细信息
       await fetchProfile();
     } catch (e) {
@@ -197,6 +201,9 @@ class UserNotifier extends StateNotifier<UserState> {
         isLoggedIn: true,
         isLoading: false,
       );
+      TelemetryService().setUserId(result.user.accountSequence);
+      TelemetryService().setAccessToken(result.accessToken);
+      TelemetryService().resumeAfterLogin();
       // 登录后获取详细信息
       await fetchProfile();
     } catch (e) {
@@ -211,6 +218,8 @@ class UserNotifier extends StateNotifier<UserState> {
         await _authDataSource.logout(state.refreshToken!);
       } catch (_) {}
     }
+    await TelemetryService().pauseForLogout();
+    TelemetryService().setAccessToken(null);
     await _clearStorage();
     state = UserState();
   }
@@ -224,6 +233,7 @@ class UserNotifier extends StateNotifier<UserState> {
       final prefs = await SharedPreferences.getInstance();
       await prefs.setString('access_token', newAccessToken);
       state = state.copyWith(accessToken: newAccessToken);
+      TelemetryService().setAccessToken(newAccessToken);
     } catch (e) {
       // 清除本地存储，不调用远程logout API（可能网络不可用）
       await _clearStorage();