fixbug download contract

src/main/resources/au/com/royalpay/payment/manage/mappers/system/ClientFilesMapper.xml

@@ -13,4 +13,9 @@
         where file_name = 'source_agree_file'
         and client_id = #{client_id}
     </update>
+    <select id="findClientFile" resultType="com.alibaba.fastjson.JSONObject">
+        select * from sys_files
+        where client_id = #{client_id}
+        order by last_update_date
+    </select>
 </mapper>