feat(oa): 添加项目报告按数量排序功能

- 在OaProjectReportMapper.xml中增加ORDER BY子句- 按照count字段降序排列查询结果
- 提升项目报告数据展示的可读性

ruoyi-oa/src/main/resources/mapper/oa/OaProjectReportMapper.xml

@@ -141,6 +141,7 @@
             DATE_FORMAT(#{start}, '%Y-%m-%d')
             AND DATE_FORMAT(#{end},   '%Y-%m-%d')
         GROUP BY r.user_id
+        ORDER BY count DESC
     </select>