fix(order): 修复采购订单邮件抄送地址配置

- 移除错误的抄送邮箱地址 chenhao2@unisinsight.com
- 恢复正确的抄送邮箱地址 laiyk@dsipc.com.cn
- 针对供应商代码 P004 的邮件抄送逻辑修正

ruoyi-sip/src/main/java/com/ruoyi/sip/service/impl/OmsPurchaseOrderServiceImpl.java

@@ -415,8 +415,7 @@ public class OmsPurchaseOrderServiceImpl implements IOmsPurchaseOrderService, To
         List<String> cssMailList = new ArrayList<>();
         //鼎盛需要抄送
         if ("P004".equals(existsOrder.getVendorCode())){
-//            cssMailList.add("laiyk@dsipc.com.cn");
-            cssMailList.add("chenhao2@unisinsight.com");
+            cssMailList.add("laiyk@dsipc.com.cn");
         }