feat(oa): 调整项目进度步骤实体类字段

- 在OaProjectScheduleStep类中新增sortNum字段用于排序
-从OaScheduleTemplateStep类中移除sortNum字段

ruoyi-oa/src/main/java/com/ruoyi/oa/domain/OaProjectScheduleStep.java

@@ -136,4 +136,7 @@ public class OaProjectScheduleStep extends BaseEntity {
      */
     private String specification;
 
+    //排序字段
+    private Integer sortNum;
+
 }

ruoyi-oa/src/main/java/com/ruoyi/oa/domain/OaScheduleTemplateStep.java

@@ -57,7 +57,6 @@ public class OaScheduleTemplateStep extends BaseEntity {
      */
     private String description;
 
-    //排序字段
-    private Integer sortNum;
+
 
 }