refactor(mp): 迁移医护+健康页面 — 使用 PageShell + ContentCard 统一组件库

行动收件箱、医护工作台、健康趋势、患者告警、体征录入、
日常监测、设备同步共 7 个页面迁移：
- 最外层容器 → PageShell
- 卡片元素 → ContentCard
- SCSS 删除 min-height/background/box-shadow 通用样式

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

@@ -12,6 +12,8 @@ import { uploadReadings } from '@/services/device-sync';
 import { useAuthStore } from '@/stores/auth';
 import type { BLEDevice, NormalizedReading } from '@/services/ble/types';
 import { useElderClass } from '@/hooks/useElderClass';
+import PageShell from '@/components/ui/PageShell';
+import ContentCard from '@/components/ui/ContentCard';
 import './index.scss';
 
 /** liveReadings 最大保留条数，防止内存无限增长 */
@@ -232,10 +234,10 @@ export default function DeviceSync() {
 
   const renderConnected = () => (
     <View className="sync-section">
-      <View className="sync-status-card">
+      <ContentCard className="sync-status-card">
         <Text className="sync-status-dot sync-status-dot--connected" />
         <Text className="sync-status-text">已连接: {selectedDevice?.name}</Text>
-      </View>
+      </ContentCard>
 
       {liveReadings.length > 0 && (
         <View className="sync-readings-panel">
@@ -276,11 +278,11 @@ export default function DeviceSync() {
 
   const renderDone = () => (
     <View className="sync-section">
-      <View className="sync-result-card">
+      <ContentCard className="sync-result-card">
         <Text className="sync-result-icon">V</Text>
         <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>
+      </ContentCard>
       <View className="sync-action" onClick={() => {
         handleDisconnect();
         if (returnTo === 'input') {
@@ -293,7 +295,7 @@ export default function DeviceSync() {
   );
 
   return (
-    <View className={`device-sync-page ${modeClass}`}>
+    <PageShell padding="none" className={modeClass}>
       <View className="sync-header">
         <Text className="sync-header-title">设备同步</Text>
       </View>
@@ -317,6 +319,6 @@ export default function DeviceSync() {
       {(pageState === 'idle' || pageState === 'error') && renderIdle()}
       {pageState === 'connected' && renderConnected()}
       {pageState === 'done' && renderDone()}
-    </View>
+    </PageShell>
   );
 }