refactor(mp): 架构重构 — usePageData 统一数据加载 + Store 解耦 + 大页面拆分

新增 usePageData hook（useDidShow 节流 + usePullDownRefresh + loadingRef 防重入 + enabled 条件守卫），
44/58 页面迁移接入，消灭 4 种数据加载模式并存。

- 新增 hooks/usePageData.ts — 统一页面数据加载生命周期
- 新增 stores/index.ts — resetAllStores() 解耦 auth↔health store 依赖
- 新增 pages/index/useHomeData.ts — 首页数据 hook（424→282 行）
- 新增 pages/health/useHealthData.ts — 健康页数据 hook（422→254 行）
- 44 个页面迁移到 usePageData（9 患者端 + 15 医生端 + 20 子包）
- auth store logout 不再直接导入 health store

构建通过，测试 74/75（1 个预存失败）。

apps/miniprogram/src/pages/article/detail/index.tsx

@@ -1,6 +1,7 @@
-import React, { useState, useEffect } from 'react';
+import React, { useState, useCallback } from 'react';
 import { View, Text, RichText } from '@tarojs/components';
 import Taro, { useRouter, useShareAppMessage } from '@tarojs/taro';
+import { usePageData } from '@/hooks/usePageData';
 import { getArticleDetail, getPublicArticleDetail, Article } from '../../../services/article';
 import { trackEvent } from '@/services/analytics';
 import { sanitizeHtml } from '@/utils/sanitize-html';
@@ -24,17 +25,23 @@ export default function ArticleDetail() {
     };
   });
 
-  useEffect(() => {
+  const fetchArticle = useCallback(async () => {
     if (!id) return;
     setLoading(true);
-    const user = useAuthStore.getState().user;
-    const fetcher = user ? getArticleDetail(id) : getPublicArticleDetail(id);
-    fetcher
-      .then((data) => setArticle(data))
-      .catch(() => Taro.showToast({ title: '加载失败', icon: 'none' }))
-      .finally(() => setLoading(false));
+    try {
+      const user = useAuthStore.getState().user;
+      const fetcher = user ? getArticleDetail(id) : getPublicArticleDetail(id);
+      const data = await fetcher;
+      setArticle(data);
+    } catch {
+      Taro.showToast({ title: '加载失败', icon: 'none' });
+    } finally {
+      setLoading(false);
+    }
   }, [id]);
 
+  usePageData(fetchArticle, { throttleMs: 60000 });
+
   if (loading) {
     return (
       <View className={`article-detail-page ${modeClass}`}>

apps/miniprogram/src/pages/article/index.tsx

@@ -1,7 +1,7 @@
 import React, { useState, useCallback, useEffect } from 'react';
 import { View, Text, Image, ScrollView } from '@tarojs/components';
-import Taro, { usePullDownRefresh, useReachBottom } from '@tarojs/taro';
-import { useThrottledDidShow } from '@/hooks/useThrottledDidShow';
+import Taro, { useReachBottom } from '@tarojs/taro';
+import { usePageData } from '@/hooks/usePageData';
 import { listArticles, listCategories, Article, ArticleCategory } from '../../services/article';
 import EmptyState from '../../components/EmptyState';
 import Loading from '../../components/Loading';
@@ -49,15 +49,10 @@ export default function ArticleList() {
     fetchCategories();
   }, [fetchCategories]);
 
-  useThrottledDidShow(() => {
-    fetchData(1, false, null);
-  }, 10000);
-
-  usePullDownRefresh(() => {
-    fetchData(1, false, null).finally(() => {
-      Taro.stopPullDownRefresh();
-    });
-  });
+  usePageData(
+    useCallback(() => fetchData(1, false, null), [fetchData]),
+    { throttleMs: 10000, enablePullDown: true },
+  );
 
   useReachBottom(() => {
     if (!loading && articles.length < total) {