fix(mp): 五专家组审查 HIGH 级问题修复 — 9 项

- S-1: 隐私政策描述修正（"混淆加密" → "HTTPS + 微信沙箱"）
- A-1: getCachedPatientId 统一导出 + 9 处 Storage 直读替换
- A-2: usePageData loading 改为 useState 响应式
- A-3: health.ts refreshingToday 移入 store state
- M-2: prod config 移除 console.error/warn
- M-4: clearCache 后同步刷新 request.ts 内存缓存
- Q-3: doctor/appointment.ts any[] → Appointment 类型
- Q-4: daily-monitoring 常量提取到 constants.ts
- 清理: 删除空目录 FamilyPicker/HealthCard + 未使用组件 DeviceCard

apps/miniprogram/src/hooks/usePageData.ts

@@ -1,4 +1,4 @@
-import { useRef, useCallback } from 'react';
+import { useRef, useState, useCallback } from 'react';
 import Taro, { useDidShow, usePullDownRefresh } from '@tarojs/taro';
 
 interface UsePageDataOptions {
@@ -22,6 +22,7 @@ export function usePageData(
   const enabled = options?.enabled ?? true;
 
   const loadingRef = useRef(false);
+  const [loading, setLoading] = useState(false);
   const lastRunRef = useRef(0);
   const fetcherRef = useRef(fetcher);
   fetcherRef.current = fetcher;
@@ -30,11 +31,13 @@ export function usePageData(
     if (!enabled || loadingRef.current) return;
     if (!force && Date.now() - lastRunRef.current < throttleMs) return;
     loadingRef.current = true;
+    setLoading(true);
     lastRunRef.current = Date.now();
     try {
       await fetcherRef.current();
     } finally {
       loadingRef.current = false;
+      setLoading(false);
     }
   }, [enabled, throttleMs]);
 
@@ -49,11 +52,13 @@ export function usePageData(
   const refresh = useCallback(async () => {
     if (loadingRef.current) return;
     loadingRef.current = true;
+    setLoading(true);
     lastRunRef.current = Date.now();
     try {
       await fetcherRef.current();
     } finally {
       loadingRef.current = false;
+      setLoading(false);
     }
   }, []);
 
@@ -66,5 +71,5 @@ export function usePageData(
     }
   });
 
-  return { loading: loadingRef.current, refresh, trigger };
+  return { loading, refresh, trigger };
 }