feat(mp): Phase 2 功能补全 — SOS+推送+趋势图tooltip+家属安全存储

- index: 添加 SOS 紧急求助悬浮按钮（仅患者可见）
- alerts: 告警页面添加微信推送订阅 + critical 推送标识
- TrendChart: 添加触摸 tooltip 显示日期和数值
- family: edit_patient 改用 secureSet/secureGet 安全存储

apps/miniprogram/src/pages/index/index.scss

@@ -499,3 +499,43 @@
   font-weight: 600;
   color: $white;
 }
+
+// ── SOS 紧急求助按钮 ──
+
+.sos-btn {
+  position: fixed;
+  right: 24px;
+  bottom: 140px;
+  width: 56px;
+  height: 56px;
+  border-radius: 50%;
+  background: #DC2626;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.4);
+  z-index: 100;
+
+  &:active {
+    opacity: 0.8;
+    transform: scale(0.95);
+  }
+}
+
+.sos-btn-text {
+  font-size: 16px;
+  font-weight: 700;
+  color: #fff;
+  letter-spacing: 1px;
+}
+
+.elder-mode .sos-btn {
+  width: 68px;
+  height: 68px;
+  right: 20px;
+  bottom: 130px;
+}
+
+.elder-mode .sos-btn-text {
+  font-size: 20px;
+}

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

@@ -195,6 +195,35 @@ function GuestHome({ modeClass }: { modeClass: string }) {
 
 // ─── 登录后首页 ───
 
+function SOSButton() {
+  const user = useAuthStore((s) => s.user);
+  const isMedicalStaff = useAuthStore((s) => s.isMedicalStaff);
+  const currentPatient = useAuthStore((s) => s.currentPatient);
+
+  if (!user || !currentPatient || isMedicalStaff()) return null;
+
+  const handleSOS = async () => {
+    const { confirm } = await Taro.showModal({
+      title: '紧急求助',
+      content: '是否拨打急救电话？',
+      confirmText: '拨打',
+      cancelText: '取消',
+    });
+    if (confirm) {
+      Taro.makePhoneCall({
+        phoneNumber: '120',
+        fail: () => Taro.showToast({ title: '拨号失败', icon: 'none' }),
+      });
+    }
+  };
+
+  return (
+    <View className='sos-btn' onClick={handleSOS}>
+      <Text className='sos-btn-text'>SOS</Text>
+    </View>
+  );
+}
+
 function HomeDashboard({ modeClass }: { modeClass: string }) {
   const {
     healthItems, indicatorCapsules, completedCount, progressPercent,
@@ -302,6 +331,7 @@ function HomeDashboard({ modeClass }: { modeClass: string }) {
           <Text className='action-btn-text'>预约挂号</Text>
         </View>
       </View>
+      <SOSButton />
     </PageShell>
   );
 }

apps/miniprogram/src/pages/pkg-health/alerts/index.scss

@@ -126,3 +126,19 @@
   color: $card;
   font-weight: 500;
 }
+
+// ── 告警推送标识 ──
+
+.alert-header-left {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.alert-push-tag {
+  font-size: var(--tk-caption);
+  color: var(--tk-primary);
+  background: rgba(8, 145, 178, 0.1);
+  padding: 2px 8px;
+  border-radius: 4px;
+}

apps/miniprogram/src/pages/pkg-health/alerts/index.tsx

@@ -72,6 +72,15 @@ export default function PatientAlerts() {
     async () => {
       Taro.setNavigationBarTitle({ title: '健康告警' });
       await fetchAlerts(1, status, true);
+      // 请求 critical 告警推送订阅
+      try {
+        const tmplId = process.env.TARO_APP_WX_TEMPLATE_CRITICAL_ALERT || '';
+        if (tmplId) {
+          await Taro.requestSubscribeMessage({ tmplIds: [tmplId] });
+        }
+      } catch {
+        // 用户拒绝或已订阅，不阻塞页面
+      }
     },
     { throttleMs: 10000, enablePullDown: true },
   );
@@ -111,8 +120,13 @@ export default function PatientAlerts() {
             return (
               <ContentCard className='alert-card' key={item.id}>
                 <View className='alert-header'>
-                  <View className={`alert-badge ${sev.className}`}>
-                    <Text className='alert-badge-text'>{sev.label}</Text>
+                  <View className='alert-header-left'>
+                    <View className={`alert-badge ${sev.className}`}>
+                      <Text className='alert-badge-text'>{sev.label}</Text>
+                    </View>
+                    {item.severity === 'critical' && (
+                      <Text className='alert-push-tag'>推送通知已开启</Text>
+                    )}
                   </View>
                   <Text className='alert-time'>
                     {new Date(item.created_at).toLocaleDateString()}

apps/miniprogram/src/pages/pkg-profile/family-add/index.tsx

@@ -2,6 +2,7 @@ import React, { useState, useEffect } from 'react';
 import { View, Text, Input, Picker } from '@tarojs/components';
 import Taro, { useRouter } from '@tarojs/taro';
 import { createPatient, updatePatient, Patient } from '../../../services/patient';
+import { secureGet, secureRemove } from '@/utils/secure-storage';
 import { useElderClass } from '../../../hooks/useElderClass';
 import { useSafeTimeout } from '@/hooks/useSafeTimeout';
 import PageShell from '@/components/ui/PageShell';
@@ -14,7 +15,8 @@ export default function FamilyAdd() {
   const modeClass = useElderClass();
   const router = useRouter();
   const editId = router.params.id || '';
-  const editData = Taro.getStorageSync('edit_patient') as Patient | null;
+  const rawEdit = secureGet('edit_patient');
+  const editData: Patient | null = rawEdit ? JSON.parse(rawEdit) : null;
 
   const [name, setName] = useState(editData?.name || '');
   const [relationIdx, setRelationIdx] = useState(
@@ -28,7 +30,7 @@ export default function FamilyAdd() {
   const { safeSetTimeout } = useSafeTimeout();
 
   useEffect(() => {
-    return () => { Taro.removeStorageSync('edit_patient'); };
+    return () => { secureRemove('edit_patient'); };
   }, []);
 
   const handleSubmit = async () => {

apps/miniprogram/src/pages/pkg-profile/family/index.tsx

@@ -2,6 +2,7 @@ import React, { useState, useCallback } from 'react';
 import { View, Text } from '@tarojs/components';
 import Taro from '@tarojs/taro';
 import { safeNavigateTo } from '@/utils/navigate';
+import { secureSet } from '@/utils/secure-storage';
 import { usePageData } from '@/hooks/usePageData';
 import { listPatients, Patient } from '../../../services/patient';
 import { useAuthStore } from '../../../stores/auth';
@@ -60,7 +61,7 @@ export default function FamilyList() {
   };
 
   const goToEdit = (patient: Patient) => {
-    Taro.setStorageSync('edit_patient', patient);
+    secureSet('edit_patient', JSON.stringify(patient));
     safeNavigateTo(`/pages/pkg-profile/family-add/index?id=${patient.id}`);
   };