feat: 积分商城子页面 + 日常监测 + 统计报表 (Chunk 6)

小程序 — 积分商城 (3 新页面):
- mall/exchange: 兑换确认 (余额校验/QR码生成)
- mall/orders: 我的订单 (状态筛选/分页/QR展示)
- mall/detail: 积分明细 (余额卡片/收入支出筛选/流水列表)

小程序 — 上报 Tab 改造:
- health/daily-monitoring: 日常监测表单 (血压/体重/血糖/出入量)
- health/index: 增加快捷操作/打卡状态/近期监测卡片
- consultation: 替换占位为咨询列表 (会话/状态/未读)
- profile: 新增积分余额/打卡天数/我的订单/积分明细入口

小程序 — 新增服务:
- services/consultation.ts: 咨询会话 API
- services/points.ts: 扩展兑换/订单/流水 API
- services/health.ts: 扩展日常监测 API

PC 管理端:
- StatisticsDashboard: 统计报表仪表盘 (患者/咨询/随访/积分卡片 + Top10排行 + 快速链接)
- 侧边栏新增统计报表入口 (健康模块首页)

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

@@ -1,12 +1,79 @@
+import { useState } from 'react';
 import { View, Text } from '@tarojs/components';
-import Taro, { useDidShow } from '@tarojs/taro';
+import Taro, { useDidShow, usePullDownRefresh } from '@tarojs/taro';
+import { listConsultations, ConsultationSession } from '@/services/consultation';
+import Loading from '../../components/Loading';
 import './index.scss';
 
+function getStatusLabel(status: string): string {
+  const map: Record<string, string> = {
+    pending: '等待接诊',
+    active: '进行中',
+    closed: '已结束',
+    cancelled: '已取消',
+  };
+  return map[status] || status;
+}
+
+function getStatusClass(status: string): string {
+  if (status === 'active') return 'session-status-active';
+  if (status === 'pending') return 'session-status-pending';
+  return 'session-status-closed';
+}
+
+function formatTime(iso: string): string {
+  if (!iso) return '';
+  const d = new Date(iso);
+  const now = new Date();
+  const diffMs = now.getTime() - d.getTime();
+  const diffMin = Math.floor(diffMs / 60000);
+
+  if (diffMin < 1) return '刚刚';
+  if (diffMin < 60) return `${diffMin}分钟前`;
+  const diffHour = Math.floor(diffMin / 60);
+  if (diffHour < 24) return `${diffHour}小时前`;
+  const diffDay = Math.floor(diffHour / 24);
+  if (diffDay < 7) return `${diffDay}天前`;
+
+  const m = String(d.getMonth() + 1).padStart(2, '0');
+  const day = String(d.getDate()).padStart(2, '0');
+  return `${m}-${day}`;
+}
+
 export default function Consultation() {
+  const [sessions, setSessions] = useState<ConsultationSession[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState('');
+
+  const loadSessions = async () => {
+    setLoading(true);
+    setError('');
+    try {
+      const resp = await listConsultations({ page: 1, page_size: 20 });
+      setSessions(resp.data || []);
+    } catch (e: unknown) {
+      const msg = e instanceof Error ? e.message : '加载失败';
+      setError(msg);
+    } finally {
+      setLoading(false);
+    }
+  };
+
   useDidShow(() => {
     Taro.setNavigationBarTitle({ title: '在线咨询' });
+    loadSessions();
   });
 
+  usePullDownRefresh(() => {
+    loadSessions().finally(() => {
+      Taro.stopPullDownRefresh();
+    });
+  });
+
+  const handleTapSession = (_session: ConsultationSession) => {
+    Taro.showToast({ title: '即将上线', icon: 'none' });
+  };
+
   return (
     <View className='consultation-page'>
       <View className='consultation-header'>
@@ -14,11 +81,57 @@ export default function Consultation() {
         <Text className='consultation-header-desc'>随时随地，连接专业医生</Text>
       </View>
 
-      <View className='consultation-placeholder'>
-        <Text className='consultation-placeholder-icon'>💬</Text>
-        <Text className='consultation-placeholder-text'>即将上线</Text>
-        <Text className='consultation-placeholder-hint'>在线咨询功能正在开发中，敬请期待</Text>
-      </View>
+      {loading ? (
+        <View className='consultation-loading'>
+          <Loading text='加载中...' />
+        </View>
+      ) : error ? (
+        <View className='consultation-error'>
+          <Text className='consultation-error-text'>{error}</Text>
+        </View>
+      ) : sessions.length === 0 ? (
+        <View className='consultation-empty'>
+          <Text className='consultation-empty-icon'>💬</Text>
+          <Text className='consultation-empty-text'>暂无咨询记录</Text>
+          <Text className='consultation-empty-hint'>在线咨询功能即将上线，敬请期待</Text>
+        </View>
+      ) : (
+        <View className='consultation-list'>
+          {sessions.map((session) => (
+            <View
+              key={session.id}
+              className='consultation-session'
+              onClick={() => handleTapSession(session)}
+            >
+              <View className='session-left'>
+                <View className='session-top'>
+                  <Text className='session-subject'>
+                    {session.subject || '在线咨询'}
+                  </Text>
+                  <Text className={getStatusClass(session.status)}>
+                    {getStatusLabel(session.status)}
+                  </Text>
+                </View>
+                <Text className='session-message'>
+                  {session.last_message || '暂无消息'}
+                </Text>
+                <Text className='session-time'>
+                  {session.last_message_at
+                    ? formatTime(session.last_message_at)
+                    : formatTime(session.created_at)}
+                </Text>
+              </View>
+              {session.unread_count > 0 && (
+                <View className='session-badge'>
+                  <Text className='session-badge-text'>
+                    {session.unread_count > 99 ? '99+' : session.unread_count}
+                  </Text>
+                </View>
+              )}
+            </View>
+          ))}
+        </View>
+      )}
     </View>
   );
 }