feat(oa): 实现项目进度延期申请与审批功能

- 新增申请延期接口，自动填充申请人与申请时间
- 新增审批延期接口，自动填充审批人与审批时间
- 完善延期记录查询逻辑，支持多字段筛选
- 补充延期记录列表展示字段，关联步骤信息
- 优化延期申请逻辑，自动补全原计划结束时间
- 更新Mapper XML，完善延期记录联合查询SQL
- VO类新增步骤相关字段，用于前端展示
- Controller层增加申请与审批接口路由
- Service层实现申请与审批核心业务逻辑
- BO类新增申请与审批方法签名定义

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

@@ -24,7 +24,33 @@
         <result property="delFlag" column="del_flag"/>
         <result property="remark" column="remark"/>
     </resultMap>
-    <select id="selectVoPagePlus" resultType="com.ruoyi.oa.domain.vo.OaProjectScheduleDelayVo"></select>
+    <select id="selectVoPagePlus" resultType="com.ruoyi.oa.domain.vo.OaProjectScheduleDelayVo">
+        SELECT opsd.delay_id          AS delayId,
+               opsd.track_id          AS trackId,
+               opsd.apply_user_name   AS applyUserName,
+               opsd.apply_time        AS applyTime,
+               opsd.apply_reason      AS applyReason,
+               opsd.original_end_time AS originalEndTime,
+               opsd.expect_end_time   AS expectEndTime,
+               opsd.approve_user_name AS approveUserName,
+               opsd.approve_time      AS approveTime,
+               opsd.approve_result    AS approveResult,
+               opsd.approve_remark    AS approveRemark,
+               opsd.delay_status      AS delayStatus,
+               opsd.remark            AS remark,
+               opss.step_name         AS stepName,
+               opss.node_header       AS nodeHeader,
+               opss.status            AS stepStatus,
+               opss.schedule_id       AS scheduleId,
+               opss.tab_node          AS tabNode,
+               opss.first_level_node  AS firstLevelNode,
+               opss.second_level_node AS secondLevelNode,
+               opss.start_time        AS startTime,
+               opss.specification     AS specification
+        FROM oa_project_schedule_delay opsd
+                 LEFT JOIN oa_project_schedule_step opss ON opss.track_id = opsd.track_id
+            ${ew.customSqlSegment}
+    </select>
 
 
 </mapper>