refactor(storage): 迁移 AsyncStorage 至 expo-sqlite/kv-store

- 统一替换所有 @react-native-async-storage/async-storage 导入为自定义 kvStore
- 新增 kvStore.ts 封装 expo-sqlite/kv-store，保持与 AsyncStorage 完全兼容
- 新增同步读写方法，提升性能
- 引入 expo-sqlite 依赖并更新 lock 文件

BREAKING CHANGE: 移除 @react-native-async-storage/async-storage 依赖，需重新安装依赖并清理旧数据

utils/kvStore.ts

@@ -0,0 +1,23 @@
+// 直接使用 expo-sqlite/kv-store 作为 AsyncStorage 的替代品
+// 这是 expo-sqlite 提供的现成 key-value store 实现，完全兼容 AsyncStorage API
+import Storage from 'expo-sqlite/kv-store';
+
+// 重新导出所有方法，保持与原 AsyncStorage 相同的接口
+export const getItem = Storage.getItem.bind(Storage);
+export const setItem = Storage.setItem.bind(Storage);
+export const removeItem = Storage.removeItem.bind(Storage);
+export const getAllKeys = Storage.getAllKeys.bind(Storage);
+export const multiGet = Storage.multiGet.bind(Storage);
+export const multiSet = Storage.multiSet.bind(Storage);
+export const multiRemove = Storage.multiRemove.bind(Storage);
+export const clear = Storage.clear.bind(Storage);
+
+// 同步方法（expo-sqlite/kv-store 的特色功能）
+export const getItemSync = Storage.getItemSync.bind(Storage);
+export const setItemSync = Storage.setItemSync.bind(Storage);
+export const removeItemSync = Storage.removeItemSync.bind(Storage);
+export const getAllKeysSync = Storage.getAllKeysSync.bind(Storage);
+export const clearSync = Storage.clearSync.bind(Storage);
+
+// 默认导出，与 AsyncStorage 接口完全兼容
+export default Storage;