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/index/useHomeData.ts

@@ -0,0 +1,149 @@
+import { useState, useMemo, useRef } from 'react';
+import { useHealthStore } from '@/stores/health';
+import { useAuthStore } from '@/stores/auth';
+import { usePageData } from '@/hooks/usePageData';
+import { trackPageView } from '@/services/analytics';
+import * as appointmentApi from '@/services/appointment';
+import * as followupApi from '@/services/followup';
+import { listPendingSuggestions, type AiSuggestionItem } from '@/services/ai-analysis';
+import { notificationService } from '@/services/notification';
+
+export interface ReminderItem {
+  id: string;
+  text: string;
+  type: 'ai' | 'appointment' | 'followup';
+  tag: string;
+}
+
+function buildSuggestionText(s: AiSuggestionItem): string {
+  const riskMap: Record<string, string> = { high: '高风险', medium: '中风险', low: '低风险' };
+  const typeMap: Record<string, string> = {
+    vital_sign_anomaly: '体征异常',
+    lab_result_anomaly: '化验异常',
+    medication_adherence: '用药提醒',
+    lifestyle: '生活建议',
+  };
+  const risk = riskMap[s.risk_level] || '';
+  const type = typeMap[s.suggestion_type] || '健康建议';
+  return `${type}：发现${risk}指标，建议关注`;
+}
+
+export function useHomeData() {
+  const user = useAuthStore((s) => s.user);
+  const currentPatient = useAuthStore((s) => s.currentPatient);
+  const todaySummary = useHealthStore((s) => s.todaySummary);
+  const loading = useHealthStore((s) => s.loading);
+  const refreshToday = useHealthStore((s) => s.refreshToday);
+  const [reminders, setReminders] = useState<ReminderItem[]>([]);
+  const [unreadCount, setUnreadCount] = useState(0);
+  const [remindersLoading, setRemindersLoading] = useState(false);
+
+  const fetchData = async () => {
+    const patientId = useAuthStore.getState().currentPatient?.id;
+    if (!patientId) return;
+    refreshToday();
+    loadReminders(patientId);
+    loadUnread();
+    trackPageView('home');
+  };
+
+  const { trigger, refresh } = usePageData(fetchData, {
+    throttleMs: 5000,
+    enablePullDown: true,
+    enabled: !!user,
+  });
+
+  const loadUnread = async () => {
+    try {
+      const res = await notificationService.getUnreadCount() as { data?: { count?: number } | number };
+      const d = res.data;
+      setUnreadCount(typeof d === 'object' && d ? (d.count ?? 0) : 0);
+    } catch { /* ignore */ }
+  };
+
+  const loadReminders = async (patientId: string) => {
+    setRemindersLoading(true);
+    try {
+      const items: ReminderItem[] = [];
+      const [apptRes, taskRes, suggestRes] = await Promise.allSettled([
+        appointmentApi.listAppointments(patientId, 1),
+        followupApi.listTasks(patientId, 'pending'),
+        listPendingSuggestions(),
+      ]);
+
+      if (suggestRes.status === 'fulfilled') {
+        for (const s of suggestRes.value.data.slice(0, 1)) {
+          items.push({ id: s.id, text: buildSuggestionText(s), type: 'ai', tag: 'AI 建议' });
+        }
+      }
+      if (apptRes.status === 'fulfilled') {
+        for (const a of apptRes.value.data.slice(0, 1)) {
+          if (a.status === 'pending' || a.status === 'confirmed') {
+            items.push({
+              id: a.id,
+              text: `${a.appointment_date} ${a.start_time} — ${a.doctor_name || '医护'} ${a.department || '门诊'}`,
+              type: 'appointment',
+              tag: '预约',
+            });
+          }
+        }
+      }
+      if (taskRes.status === 'fulfilled') {
+        for (const t of taskRes.value.data.slice(0, 1)) {
+          items.push({
+            id: t.id,
+            text: `${t.follow_up_type} · 截止 ${t.planned_date}`,
+            type: 'followup',
+            tag: '随访',
+          });
+        }
+      }
+      setReminders(items.slice(0, 3));
+    } catch {
+      setReminders([]);
+    } finally {
+      setRemindersLoading(false);
+    }
+  };
+
+  const summary = todaySummary || {};
+  const indicators = [!!summary.blood_pressure, !!summary.heart_rate, !!summary.blood_sugar, !!summary.weight];
+  const completedCount = indicators.filter(Boolean).length;
+  const progressPercent = Math.round((completedCount / 4) * 100);
+
+  const indicatorCapsules = useMemo(() => [
+    { label: '血压', done: !!summary.blood_pressure },
+    { label: '心率', done: !!summary.heart_rate },
+    { label: '血糖', done: !!summary.blood_sugar },
+    { label: '体重', done: !!summary.weight },
+  ], [summary.blood_pressure, summary.heart_rate, summary.blood_sugar, summary.weight]);
+
+  const healthItems = useMemo(() => [
+    { label: '血压', value: summary.blood_pressure ? `${summary.blood_pressure.systolic}/${summary.blood_pressure.diastolic}` : '—', unit: 'mmHg', status: summary.blood_pressure?.status, indicator: 'systolic_bp_morning' },
+    { label: '心率', value: summary.heart_rate ? `${summary.heart_rate.value}` : '—', unit: 'bpm', status: summary.heart_rate?.status, indicator: 'heart_rate' },
+    { label: '血糖', value: summary.blood_sugar ? `${summary.blood_sugar.value}` : '—', unit: 'mmol/L', status: summary.blood_sugar?.status, indicator: 'blood_sugar' },
+    { label: '体重', value: summary.weight ? `${summary.weight.value}` : '—', unit: 'kg', status: summary.weight?.status, indicator: 'weight' },
+  ], [summary.blood_pressure, summary.heart_rate, summary.blood_sugar, summary.weight]);
+
+  const hour = new Date().getHours();
+  const greeting = hour < 12 ? '上午好' : hour < 18 ? '下午好' : '晚上好';
+  const displayName = user?.display_name || currentPatient?.name || user?.username || (user?.phone ? `${user.phone.slice(-4)}` : '') || '用户';
+
+  return {
+    user,
+    currentPatient,
+    todaySummary: summary,
+    loading,
+    reminders,
+    unreadCount,
+    remindersLoading,
+    indicatorCapsules,
+    healthItems,
+    completedCount,
+    progressPercent,
+    greeting,
+    displayName,
+    trigger,
+    refresh,
+  };
+}