feat(sales): 为销售报表添加订单明细查询功能

- 在 CrmOrderItemMapper 中添加根据订单ID列表查询订单明细的方法
- 实现 MyBatis 查询语句支持批量订单ID查询订单明细
- 修改销售报表服务类注入 CrmOrderItemMapper 依赖
- 扩展销售报表查询逻辑以包含订单明细数据
- 在销售报表 VO 中添加订单明细列表字段
- 使用流式处理和分组收集优化订单明细关联逻辑

klp-crm/src/main/resources/mapper/CrmOrderItemMapper.xml

@@ -19,6 +19,30 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <result property="updateTime" column="update_time"/>
         <result property="delFlag" column="del_flag"/>
     </resultMap>
+    <!-- 根据订单ID列表查询订单明细 -->
+    <select id="selectOrderItemsByOrderIds" resultMap="CrmOrderItemResult">
+        SELECT
+        item_id,
+        order_id,
+        product_type,
+        spec_require,
+        product_num,
+        special_require,
+        item_amount,
+        remark,
+        create_by,
+        create_time,
+        update_by,
+        update_time,
+        del_flag
+        FROM crm_order_item
+        WHERE del_flag = 0
+        AND order_id IN
+        <foreach collection="orderIds" item="orderId" open="(" separator="," close=")">
+            #{orderId}
+        </foreach>
+        ORDER BY item_id ASC
+    </select>
 
 
 </mapper>