Refactor iOS dependencies and update HealthKit integration

- Removed NitroModules and ReactNativeHealthkit from Podfile.lock and package files.
- Updated Info.plist to increment app version from 2 to 3.
- Refactored background task manager to define background tasks within the class.
- Added new utility file for sleep data management, including fetching sleep samples, calculating sleep statistics, and generating sleep quality scores.

package.json

@@ -13,7 +13,6 @@
   },
   "dependencies": {
     "@expo/vector-icons": "^14.1.0",
-    "@kingstinct/react-native-healthkit": "^10.1.0",
     "@react-native-async-storage/async-storage": "^2.2.0",
     "@react-native-community/datetimepicker": "^8.4.4",
     "@react-native-masked-view/masked-view": "^0.3.2",
@@ -60,7 +59,6 @@
     "react-native-image-viewing": "^0.2.2",
     "react-native-markdown-display": "^7.0.2",
     "react-native-modal-datetime-picker": "^18.0.0",
-    "react-native-nitro-modules": "^0.29.3",
     "react-native-popover-view": "^6.1.0",
     "react-native-purchases": "^9.2.2",
     "react-native-reanimated": "~3.17.4",
@@ -82,4 +80,4 @@
     "typescript": "~5.8.3"
   },
   "private": true
-}
+}