feat(flow): 添加排产明细钢卷关系管理功能

- 创建排产明细钢卷关系实体类 SchDetailCoilRel
- 定义业务对象 SchDetailCoilRelBo 和视图对象 SchDetailCoilRelVo
- 实现排产明细钢卷关系服务接口 ISchDetailCoilRelService
- 开发控制器 SchDetailCoilRelController 提供 REST API
- 创建数据访问层 SchDetailCoilRelMapper 和 XML 映射文件
- 实现服务层业务逻辑 SchDetailCoilRelServiceImpl
- 集成分页查询、新增、修改、删除等基础操作
- 添加 Excel 导出功能和数据验证机制

klp-flow/src/main/java/com/klp/flow/mapper/SchDetailCoilRelMapper.java

@@ -0,0 +1,15 @@
+package com.klp.flow.mapper;
+
+import com.klp.flow.domain.SchDetailCoilRel;
+import com.klp.flow.domain.vo.SchDetailCoilRelVo;
+import com.klp.common.core.mapper.BaseMapperPlus;
+
+/**
+ * 排产明细钢卷关系Mapper接口
+ *
+ * @author klp
+ * @date 2026-06-25
+ */
+public interface SchDetailCoilRelMapper extends BaseMapperPlus<SchDetailCoilRelMapper, SchDetailCoilRel, SchDetailCoilRelVo> {
+
+}