fix(miniprogram): 深度审查修复多个功能问题

- settings: 清除缓存不再错误读取明文 token，改由 auth store restore 恢复
- appointment: 移除多余的 detail_cache Storage 写入
- reports: 未选择就诊人时显示引导提示而非空白
- health/input: 血压录入验证舒张压必填
- followups: tab 切换时不再清空列表导致闪烁

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

@@ -1,7 +1,7 @@
 import React, { useState, useCallback, useRef } from 'react';
 import { View, Text } from '@tarojs/components';
 import Taro, { useDidShow, useReachBottom, usePullDownRefresh } from '@tarojs/taro';
-import { listAppointments, cancelAppointment } from '../../services/appointment';
+import { listAppointments } from '../../services/appointment';
 import type { Appointment } from '../../services/appointment';
 import EmptyState from '../../components/EmptyState';
 import Loading from '../../components/Loading';
@@ -64,10 +64,6 @@ export default function AppointmentList() {
   };
 
   const goDetail = (id: string) => {
-    const item = appointments.find((a) => a.id === id);
-    if (item) {
-      Taro.setStorageSync('appointment_detail_cache', item);
-    }
     Taro.navigateTo({ url: `/pages/appointment/detail/index?id=${id}` });
   };