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/doctor/index.scss

@@ -174,9 +174,30 @@
     font-family: 'Georgia', 'Times New Roman', serif;
     font-size: 28px;
     font-weight: 700;
+  }
+
+  &__icon-wrap {
+    position: relative;
+    display: inline-flex;
     margin-bottom: 8px;
   }
 
+  &__badge {
+    position: absolute;
+    top: -6px;
+    right: -12px;
+    min-width: 32px;
+    height: 32px;
+    line-height: 32px;
+    text-align: center;
+    background: $dan;
+    color: #fff;
+    font-size: 18px;
+    font-weight: 700;
+    border-radius: $r-pill;
+    padding: 0 6px;
+  }
+
   &__label {
     font-size: 24px;
     color: $tx2;

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

@@ -30,7 +30,7 @@ const QUICK_ACTIONS = [
   { label: '化验审核', initial: '审', route: '/pages/doctor/report/index' },
   { label: '患者查询', initial: '查', route: '/pages/doctor/patients/index' },
   { label: '随访记录', initial: '随', route: '/pages/doctor/followup/index' },
-  { label: '排班查看', initial: '排', route: '/pages/doctor/patients/index' },
+  { label: '告警中心', initial: '警', route: '/pages/doctor/alerts/index' },
 ];
 
 export default function DoctorHome() {
@@ -143,7 +143,12 @@ export default function DoctorHome() {
               className='quick-action'
               onClick={() => Taro.navigateTo({ url: action.route })}
             >
-              <Text className='quick-action__initial'>{action.initial}</Text>
+              <View className='quick-action__icon-wrap'>
+                <Text className='quick-action__initial'>{action.initial}</Text>
+                {action.label === '告警中心' && alertCount > 0 && (
+                  <Text className='quick-action__badge'>{alertCount > 99 ? '99+' : alertCount}</Text>
+                )}
+              </View>
               <Text className='quick-action__label'>{action.label}</Text>
             </View>
           ))}