feat(order): 订单销售员变更时同步更新关联钢卷业务员

- 在订单更新逻辑中增加销售员变更检测功能
- 新增数据库方法批量更新关联钢卷的业务员名称
- 实现订单销售员变更时自动同步到相关钢卷记录
- 添加钢卷与合同关联时的业务员同步机制
- 增加修改关联关系时的业务员信息同步处理
- 完善数据一致性保障机制

klp-crm/src/main/java/com/klp/crm/service/impl/CrmOrderServiceImpl.java

@@ -285,9 +285,27 @@ public class CrmOrderServiceImpl implements ICrmOrderService {
      */
     @Override
     public Boolean updateByBo(CrmOrderBo bo) {
+        // 查询旧订单获取原销售员，用于判断是否需要同步钢卷
+        CrmOrder oldOrder = null;
+        String oldSalesman = null;
+        if (bo.getOrderId() != null) {
+            oldOrder = baseMapper.selectById(bo.getOrderId());
+            oldSalesman = oldOrder != null ? oldOrder.getSalesman() : null;
+        }
+
         CrmOrder update = BeanUtil.toBean(bo, CrmOrder.class);
         validEntityBeforeSave(update);
-        return baseMapper.updateById(update) > 0;
+        boolean result = baseMapper.updateById(update) > 0;
+
+        // 如果销售员变更，同步更新所有关联钢卷的业务员名称
+        if (result && oldOrder != null) {
+            String newSalesman = update.getSalesman();
+            if (!Objects.equals(oldSalesman, newSalesman) && StringUtils.isNotBlank(newSalesman)) {
+                coilContractRelMapper.updateCoilSaleNameByOrderId(bo.getOrderId(), newSalesman);
+            }
+        }
+
+        return result;
     }
 
     /**