feat(auth): 预加载用户数据并优化登录状态同步

- 在启动屏预加载用户 token 与资料，避免首页白屏
- 新增 rehydrateUserSync 同步注入 Redux，减少异步等待
- 登录页兼容 ERR_REQUEST_CANCELED 取消场景
- 各页面统一依赖 isLoggedIn 判断，移除冗余控制台日志
- 步数卡片与详情页改为实时拉取健康数据，不再缓存至 Redux
- 后台任务注册移至顶层，防止重复定义
- 体重记录、HeaderBar 等 UI 细节样式微调

store/tasksSlice.ts

@@ -74,6 +74,8 @@ export const fetchTasks = createAsyncThunk(
   'tasks/fetchTasks',
   async (query: GetTasksQuery = {}, { rejectWithValue }) => {
     try {
+      console.log('fetchTasks', fetchTasks);
+
       const response = await tasksApi.getTasks(query);
       console.log('fetchTasks response', response);
       return { query, response };
@@ -217,6 +219,8 @@ const tasksSlice = createSlice({
 
         // 如果是第一页，替换数据；否则追加数据
         state.tasks = response.list;
+        console.log('state.tasks', state.tasks);
+
         state.tasksPagination = {
           page: response.page,
           pageSize: response.pageSize,