fix: 摄像头点播，验证设备是否在线

@@ -65,6 +65,9 @@ public class TkVideoControlServiceImpl implements TkVideoControlService {
     String tenantId = currentUser.getCurrentTenantId();
     // 判断设备、通道是否存在
     DeviceDTO deviceDTO = tkDeviceService.checkDeviceByTenantIdAndId(tenantId, deviceId, true);
+    if (null == deviceDTO || !DeviceState.ONLINE.equals(deviceDTO.getDeviceState())) {
+      throw new TkDataValidationException(ErrorMessage.DEVICE_NOT_ONLINE.getMessage());
+    }
     SipDeviceDTO sipDeviceDTO =
         JacksonUtil.convertValue(
             deviceDTO.getDeviceInfo().get(FastIotConstants.DeviceAdditional.SIP),