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

utils/health.ts

@@ -54,7 +54,6 @@ export type HourlyStandData = {
 };
 
 export type TodayHealthData = {
-  steps: number;
   activeEnergyBurned: number; // kilocalories
   basalEnergyBurned: number; // kilocalories - 基础代谢率
   hrv: number | null; // 心率变异性 (ms)
@@ -68,8 +67,6 @@ export type TodayHealthData = {
   // 新增血氧饱和度和心率数据
   oxygenSaturation: number | null;
   heartRate: number | null;
-  // 每小时步数数据
-  hourlySteps: HourlyStepData[];
 };
 
 export async function ensureHealthPermissions(): Promise<boolean> {
@@ -172,7 +169,7 @@ function validateHeartRate(value: any): number | null {
 }
 
 // 健康数据获取函数
-async function fetchStepCount(date: Date): Promise<number> {
+export async function fetchStepCount(date: Date): Promise<number> {
   return new Promise((resolve) => {
     AppleHealthKit.getStepCount({
       date: dayjs(date).toDate().toISOString()
@@ -193,7 +190,7 @@ async function fetchStepCount(date: Date): Promise<number> {
 
 
 // 使用样本数据获取每小时步数
-async function fetchHourlyStepSamples(date: Date): Promise<HourlyStepData[]> {
+export async function fetchHourlyStepSamples(date: Date): Promise<HourlyStepData[]> {
   return new Promise((resolve) => {
     const startOfDay = dayjs(date).startOf('day');
     const endOfDay = dayjs(date).endOf('day');
@@ -565,7 +562,6 @@ export async function fetchMaximumHeartRate(options: HealthDataOptions): Promise
 // 默认健康数据
 function getDefaultHealthData(): TodayHealthData {
   return {
-    steps: 0,
     activeEnergyBurned: 0,
     basalEnergyBurned: 0,
     hrv: null,
@@ -577,7 +573,6 @@ function getDefaultHealthData(): TodayHealthData {
     standHoursGoal: 12,
     oxygenSaturation: null,
     heartRate: null,
-    hourlySteps: Array.from({ length: 24 }, (_, i) => ({ hour: i, steps: 0 }))
   };
 }
 
@@ -590,8 +585,6 @@ export async function fetchHealthDataForDate(date: Date): Promise<TodayHealthDat
 
     // 并行获取所有健康数据
     const [
-      steps,
-      hourlySteps,
       activeEnergyBurned,
       basalEnergyBurned,
       hrv,
@@ -599,8 +592,6 @@ export async function fetchHealthDataForDate(date: Date): Promise<TodayHealthDat
       oxygenSaturation,
       heartRate
     ] = await Promise.all([
-      fetchStepCount(date),
-      fetchHourlyStepSamples(date),
       fetchActiveEnergyBurned(options),
       fetchBasalEnergyBurned(options),
       fetchHeartRateVariability(options),
@@ -610,8 +601,6 @@ export async function fetchHealthDataForDate(date: Date): Promise<TodayHealthDat
     ]);
 
     return {
-      steps,
-      hourlySteps,
       activeEnergyBurned,
       basalEnergyBurned,
       hrv,