feat: 集成后台任务管理功能及相关组件

- 新增后台任务管理器，支持任务的注册、执行和状态监控
- 实现自定义Hook，简化后台任务的使用和管理
- 添加示例任务，包括数据同步、健康数据更新和通知检查等
- 更新文档，详细描述后台任务系统的实现和使用方法
- 优化相关组件，确保用户体验和界面一致性

package.json

@@ -24,6 +24,7 @@
     "dayjs": "^1.11.13",
     "expo": "~53.0.20",
     "expo-apple-authentication": "6.4.2",
+    "expo-background-task": "~0.2.8",
     "expo-blur": "~14.1.5",
     "expo-constants": "~17.1.7",
     "expo-font": "~13.3.2",
@@ -32,11 +33,13 @@
     "expo-image-picker": "~16.1.4",
     "expo-linear-gradient": "^14.1.5",
     "expo-linking": "~7.1.7",
+    "expo-notifications": "~0.31.4",
     "expo-router": "~5.1.4",
     "expo-splash-screen": "~0.30.10",
     "expo-status-bar": "~2.2.3",
     "expo-symbols": "~0.4.5",
     "expo-system-ui": "~5.0.10",
+    "expo-task-manager": "^13.1.6",
     "expo-web-browser": "~14.2.0",
     "react": "19.0.0",
     "react-dom": "19.0.0",
@@ -59,8 +62,7 @@
     "react-native-web": "~0.20.0",
     "react-native-webview": "13.13.5",
     "react-native-wheel-picker-expo": "^0.5.4",
-    "react-redux": "^9.2.0",
-    "expo-notifications": "~0.31.4"
+    "react-redux": "^9.2.0"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",