[feat]提交：增加预警视频流画框截图保存框的位置信息

dk-modules/business/src/main/java/org/dromara/business/domain/vo/BusinessAlertVo.java

@@ -236,12 +236,12 @@ public class BusinessAlertVo implements Serializable {
     /**
      * 画框的四个角度参数
      */
-    private String lx;
+    private Integer lx;
 
-    private String ly;
+    private Integer ly;
 
-    private String rx;
+    private Integer rx;
 
-    private String ry;
+    private Integer ry;
 
 }