优化判断逻辑

src/Hotline.Api/Controllers/OrderController.cs

@@ -1039,10 +1039,10 @@ public class OrderController : BaseController
         if (dto.CallId.NotNullOrEmpty())
         {
             await _capPublisher.PublishDelayAsync(TimeSpan.FromSeconds(seconds), EventNames.VisitCallDelay, dto, cancellationToken: HttpContext.RequestAborted);
-        }
 
-        if (dto.CallId != null)
             dto.CallId = await _callApplication.GetOrSetCallIdAsync(dto.CallId, HttpContext.RequestAborted);
+        }
+
         await _orderApplication.SaveOrderVisit(dto, HttpContext.RequestAborted);
     }