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+# 接口变更记录 — 2026-03-26 11:50
+
+> **提交** `a137026` · **作者** wx · **时间** 2026-03-26 11:50:43 +0800
+>
+> feat: 订单新增4位团号(groupCode)，LCG混淆年度唯一
+
+## 📦 其他数据对象变更
+
+> 以下变更未直接关联到本次接口变更，但可能影响现有接口的请求/响应
+
+### 订单服务
+
+#### ✏️ MpOrderListVO
+
+  - 🆕 `groupCode` (`String`) — 4位团号
+
+#### ✏️ OrderDetailVO
+
+  - 🆕 `groupCode` (`String`) — 4位团号
+
+#### ✏️ OrderListVO
+
+  - 🆕 `groupCode` (`String`) — 4位团号
+
+<details>
+<summary>📁 全部变更文件 (点击展开)</summary>
+
+```
+A	hl-order-service/src/main/java/com/hulalv/order/entity/GroupCodeSequence.java
+M	hl-order-service/src/main/java/com/hulalv/order/entity/OrderInfo.java
+A	hl-order-service/src/main/java/com/hulalv/order/mapper/GroupCodeSequenceMapper.java
+M	hl-order-service/src/main/java/com/hulalv/order/service/OrderService.java
+M	hl-order-service/src/main/java/com/hulalv/order/vo/MpOrderListVO.java
+M	hl-order-service/src/main/java/com/hulalv/order/vo/OrderDetailVO.java
+M	hl-order-service/src/main/java/com/hulalv/order/vo/OrderListVO.java
+```
+</details>
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