feat(miniprogram): 小程序设备数据集成打通 — Phase 3

- 首页设备入口简化为直接跳转按钮（去除硬编码 never 状态）
- 体征录入页增加「从设备同步」入口，设备数据自动回填表单
- 设备同步页支持 returnTo 参数，完成后返回录入页
- 医护工作台增加告警中心固定导航入口（带数字角标）

apps/miniprogram/src/pages/device-sync/index.tsx

@@ -1,6 +1,6 @@
 import { useState, useCallback } from 'react';
 import { View, Text } from '@tarojs/components';
-import { useDidShow } from '@tarojs/taro';
+import Taro, { useDidShow, useRouter } from '@tarojs/taro';
 import { BLEManager } from '@/services/ble/BLEManager';
 import { XiaomiBandAdapter } from '@/services/ble/adapters/XiaomiBandAdapter';
 import { BloodPressureAdapter } from '@/services/ble/adapters/BloodPressureAdapter';
@@ -19,6 +19,8 @@ type PageState = 'idle' | 'scanning' | 'connecting' | 'connected' | 'syncing' |
 
 export default function DeviceSync() {
   const { currentPatient } = useAuthStore();
+  const router = useRouter();
+  const returnTo = router.params.returnTo || '';
   const [pageState, setPageState] = useState<PageState>('idle');
   const [devices, setDevices] = useState<BLEDevice[]>([]);
   const [selectedDevice, setSelectedDevice] = useState<BLEDevice | null>(null);
@@ -86,6 +88,27 @@ export default function DeviceSync() {
       if (result.success) {
         setSyncCount(result.uploadedCount);
         setPageState('done');
+
+        // 如果从体征录入页跳转而来，将最新读数写入 storage 供回填
+        if (returnTo === 'input' && liveReadings.length > 0) {
+          const mapped: Record<string, number> = {};
+          for (const r of liveReadings) {
+            if (r.device_type === 'blood_pressure') {
+              if (r.metric === 'systolic' && typeof r.values.value === 'number') mapped.systolic = r.values.value;
+              if (r.metric === 'diastolic' && typeof r.values.value === 'number') mapped.diastolic = r.values.value;
+              // 兼容 values 中直接包含 systolic/diastolic 的格式
+              if (typeof r.values.systolic === 'number') mapped.systolic = r.values.systolic as number;
+              if (typeof r.values.diastolic === 'number') mapped.diastolic = r.values.diastolic as number;
+            } else if (r.device_type === 'blood_glucose' && typeof r.values.blood_glucose === 'number') {
+              mapped.blood_sugar = r.values.blood_glucose as number;
+            } else if (r.device_type === 'heart_rate' && typeof r.values.heart_rate === 'number') {
+              mapped.heart_rate = r.values.heart_rate as number;
+            }
+          }
+          if (Object.keys(mapped).length > 0) {
+            Taro.setStorageSync('device_sync_result', JSON.stringify(mapped));
+          }
+        }
       } else {
         setErrorMsg(result.error || '同步失败');
         setPageState('error');
@@ -94,7 +117,7 @@ export default function DeviceSync() {
       setErrorMsg(e.message || '同步失败');
       setPageState('error');
     }
-  }, [currentPatient, selectedDevice]);
+  }, [currentPatient, selectedDevice, liveReadings, returnTo]);
 
   const handleDisconnect = useCallback(async () => {
     await bleManager.disconnect();
@@ -189,8 +212,13 @@ export default function DeviceSync() {
         <Text className="sync-result-title">同步完成</Text>
         <Text className="sync-result-count">成功上传 {syncCount} 条数据</Text>
       </View>
-      <View className="sync-action" onClick={handleDisconnect}>
-        <Text className="sync-action-text">完成</Text>
+      <View className="sync-action" onClick={() => {
+        handleDisconnect();
+        if (returnTo === 'input') {
+          Taro.navigateBack();
+        }
+      }}>
+        <Text className="sync-action-text">{returnTo === 'input' ? '返回录入' : '完成'}</Text>
       </View>
     </View>
   );