refactor(dms): 将停机时长单位从毫秒修改为秒，上位机存入秒数

- 在 DmsRecordShutDown、DmsRecordShutDownBo 和 DmsRecordShutDownVo 类中
-将 shutTime 字段的注释和 Excel 属性从"停机时长(毫秒)"修改为"停机时长(秒)"

ruoyi-modules/hwmom-dms/src/main/java/org/dromara/dms/domain/DmsRecordShutDown.java

@@ -57,7 +57,7 @@ public class DmsRecordShutDown extends TenantEntity {
     private Date shutEndTime;
 
     /**
-     * 停机时长(毫秒)
+     * 停机时长(秒)
      */
     private Long shutTime;
 

ruoyi-modules/hwmom-dms/src/main/java/org/dromara/dms/domain/bo/DmsRecordShutDownBo.java

@@ -54,7 +54,7 @@ public class DmsRecordShutDownBo extends BaseEntity {
     private Date shutEndTime;
 
     /**
-     * 停机时长(毫秒)
+     * 停机时长(秒)
      */
     private Long shutTime;
 

ruoyi-modules/hwmom-dms/src/main/java/org/dromara/dms/domain/vo/DmsRecordShutDownVo.java

@@ -65,9 +65,9 @@ public class DmsRecordShutDownVo implements Serializable {
     private Date shutEndTime;
 
     /**
-     * 停机时长(毫秒)
+     * 停机时长(秒)
      */
-    @ExcelProperty(value = "停机时长(毫秒)")
+    @ExcelProperty(value = "停机时长(秒)")
     private Long shutTime;
 
     /**