feat(client): 添加设备绑定/解绑与屏幕镜像功能

新增家属端设备绑定/解绑接口，支持设备上报手机号同步，并引入 WebSocket 依赖以支持 WebRTC 屏幕镜像信令端点。

src/main/java/com/youlai/boot/device/controller/DeviceOpsController.java

@@ -154,6 +154,14 @@ public class DeviceOpsController {
         return Result.judge(result);
     }
 
+    @Operation(summary = "屏幕镜像", description = "通知设备开启屏幕镜像（由家属端 client 进行 WebRTC 实时远程观看与控制）")
+    @PostMapping("/mirror")
+    @Log(module = LogModuleEnum.DEVICE, value = ActionTypeEnum.REFRESH)
+    public Result<?> mirror(@RequestParam String sn) {
+        boolean result = deviceService.mirror(sn);
+        return Result.judge(result);
+    }
+
     @Operation(summary = "开发者模式")
     @PostMapping("/developer")
     @Log(module = LogModuleEnum.DEVICE, value = ActionTypeEnum.DEVELOPER)

src/main/java/com/youlai/boot/device/controller/MobileController.java

@@ -33,6 +33,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.BeanUtils;
 import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.util.StringUtils;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
@@ -198,6 +199,18 @@ public class MobileController {
                 }
             }
 
+            // 设备上报手机号：仅当设备未建立绑定（snMobile 为空）时同步，避免覆盖家属端手动建立的绑定
+            if (snOtherInfoReq.getPhoneNumber() != null && !snOtherInfoReq.getPhoneNumber().trim().isEmpty()) {
+                SnDeviceInfo deviceInfo = deviceService.lambdaQuery()
+                        .eq(SnDeviceInfo::getSerialno, sn)
+                        .one();
+                if (deviceInfo != null && !StringUtils.hasText(deviceInfo.getSnMobile())) {
+                    deviceInfo.setSnMobile(snOtherInfoReq.getPhoneNumber());
+                    deviceInfo.setUpdateTime(LocalDateTime.now());
+                    deviceService.updateById(deviceInfo);
+                }
+            }
+
             logger.info("其他信息上传成功, sn: {}", sn);
             return Result.success();