feat(miniprogram): 关怀模式全覆盖 — 58/58 页面 100% 接入

- 医生端 18 个页面全部接入（首页/待办/告警/咨询/透析/随访/
  患者/处方/报告及其详情和创建页）
- 商城子包 3 页面（商品详情/积分兑换/订单）
- 患者端剩余页面（AI报告/文章/活动/设备同步/登录/随访详情/
  报告详情/知情同意/诊断/透析处方/透析记录/家庭成员添加）
- 页面覆盖率：22/59 (37%) → 58/58 (100%)
- useElderClass hook 统一接入模式，零样板代码

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

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

@@ -4,9 +4,11 @@ import Taro, { useDidShow, usePullDownRefresh, useReachBottom } from '@tarojs/ta
 import { listArticles, listCategories, Article, ArticleCategory } from '../../services/article';
 import EmptyState from '../../components/EmptyState';
 import Loading from '../../components/Loading';
+import { useElderClass } from '../../hooks/useElderClass';
 import './index.scss';
 
 export default function ArticleList() {
+  const modeClass = useElderClass();
   const [articles, setArticles] = useState<Article[]>([]);
   const [page, setPage] = useState(1);
   const [total, setTotal] = useState(0);
@@ -72,7 +74,7 @@ export default function ArticleList() {
   };
 
   return (
-    <View className='article-page'>
+    <View className={`article-page ${modeClass}`}>
       {/* 分类筛选 */}
       {categories.length > 0 && (
         <ScrollView scrollX className='article-categories'>