feat: 添加后台任务管理器，支持喝水和站立提醒功能

package-lock.json

@@ -44,6 +44,7 @@
         "react": "19.0.0",
         "react-dom": "19.0.0",
         "react-native": "0.79.5",
+        "react-native-background-fetch": "^4.2.8",
         "react-native-cos-sdk": "^1.2.1",
         "react-native-device-info": "^14.0.4",
         "react-native-exit-app": "^2.0.0",
@@ -11397,6 +11398,12 @@
         }
       }
     },
+    "node_modules/react-native-background-fetch": {
+      "version": "4.2.8",
+      "resolved": "https://mirrors.tencent.com/npm/react-native-background-fetch/-/react-native-background-fetch-4.2.8.tgz",
+      "integrity": "sha512-vKPumvhBuxr3oI1L7cNunYIsKV8jD4Xz2A9JT/FW5yvn7GAAct184FAZ9dFef75auBxixinaCjRBlip53xGWmQ==",
+      "license": "MIT"
+    },
     "node_modules/react-native-cos-sdk": {
       "version": "1.2.1",
       "resolved": "https://mirrors.tencent.com/npm/react-native-cos-sdk/-/react-native-cos-sdk-1.2.1.tgz",