refactor：代码优化

haoban-manage3-service/src/main/resources/mapper/TabHaobanExternalClerkRelatedMapper.xml

@@ -404,6 +404,7 @@
         and member_id = #{memberId}
         and status_flag = 1
         and external_user_id is not null
+        order by update_time desc
         limit 1
     </select>