refactor(erp): 调整项目计划阶段排序字段类型

- 将 ErpProjectPlanStage 实体类中的 sortOrder 字段类型从 Long 改为 Integer
- 同步修改 Bo 和 Vo 类中对应的 sortOrder 字段类型
- 调整代码顺序，确保业务逻辑清晰执行

ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/ErpProjectPlanStage.java

@@ -107,7 +107,7 @@ public class ErpProjectPlanStage extends TenantEntity {
     /**
      * 排序号
      */
-    private Long sortOrder;
+    private Integer sortOrder;
 
     /**
      * 备注

ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/bo/ErpProjectPlanStageBo.java

@@ -106,7 +106,7 @@ public class ErpProjectPlanStageBo extends BaseEntity {
     /**
      * 排序号
      */
-    private Long sortOrder;
+    private Integer sortOrder;
 
     /**
      * 备注

ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/domain/vo/ErpProjectPlanStageVo.java

@@ -132,7 +132,7 @@ public class ErpProjectPlanStageVo implements Serializable {
      * 排序号
      */
     @ExcelProperty(value = "排序号")
-    private Long sortOrder;
+    private Integer sortOrder;
 
     /**
      * 备注

ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/impl/ErpProjectPlanServiceImpl.java

@@ -283,12 +283,12 @@ public class ErpProjectPlanServiceImpl implements IErpProjectPlanService {
         if(isValid){
             //TODO 做一些业务上的校验,判断是否需要校验
         }
-        List<Long> businessIds = ids.stream().toList();
         // 先删除子表
         planStageMapper.delete(Wrappers.<ErpProjectPlanStage>lambdaQuery()
             .in(ErpProjectPlanStage::getProjectPlanId, ids));
         baseMapper.deleteByIds(ids);
         //删除工作流
+        List<Long> businessIds = ids.stream().toList();
         return remoteWorkflowService.deleteInstance(businessIds);
     }