更新swagger

src/components/DeviceList.vue

@@ -115,7 +115,7 @@ export default {
           ...device,
           // 格式化数据显示
           type: this.formatDeviceType(device.type),
-          lastUpdate: device.lastUpdate || '-'
+          lastUpdate: device.updated_at || '-'
         }));
       } catch (err) {
         this.error = err.message || '未知错误';