From f5213a23013b6b306060889d28ee4a65532c253d Mon Sep 17 00:00:00 2001
From: API Changelog Bot <changelog@hulalv.com>
Date: Wed, 25 Mar 2026 14:16:25 +0800
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+# 接口变更记录 — 2026-03-25 14:16
+
+> **提交** `4991f6f` · **作者** wx · **时间** 2026-03-25 14:16:25 +0800
+>
+> feat: 行程天自由增删 + 自动反写tripDays
+
+## 变更总览
+
+- **产品服务**
+  - Itinerary (+2)
+
+---
+
+## 产品服务
+
+### Itinerary
+
+> 📖 **接口文档**: [http://192.168.100.236:8085/doc.html](http://192.168.100.236:8085/doc.html) → 标签 **「行程管理」**
+
+### 🆕 `POST` /admin/product/item/{productId}/day — 追加行程天
+
+> 在行程末尾追加一天，自动更新产品的 tripDays 和 tripNights。
+
+**参数**
+
+  - `{productId}` (`Long`) — 路径参数：产品ID
+
+**请求体** `ItineraryDayRequest`
+
+| 字段 | 类型 | 说明 |
+| --- | --- | --- |
+| `dayTitle` | `String` | 天标题 |
+| `routeSummary` | `String` | 路线概览 |
+
+**响应** `Result<ItineraryDayVO>`
+
+| 字段 | 类型 | 说明 |
+| --- | --- | --- |
+| `dayId` | `String` | 行程天ID |
+| `dayNumber` | `Integer` | 天数编号 |
+| `dayTitle` | `String` | 天标题 |
+| `routeSummary` | `String` | 路线概览 |
+| `nodes` | `List<ItineraryNodeVO>` | 行程节点列表 |
+| `hotels` | `List<DayHotelVO>` | 当日酒店列表 |
+| `restaurants` | `List<DiningOptionVO>` | 当日用餐列表 |
+
+### 🆕 `DELETE` /admin/product/item/{productId}/day/{dayNumber} — 删除行程天
+
+> 删除指定天的行程（含该天的所有节点和住宿），后续天数自动重新编号。
+
+**参数**
+
+  - `{productId}` (`Long`) — 路径参数：产品ID
+  - `{dayNumber}` (`Integer`) — 路径参数：天数编号
+
+**响应** `Result<Void>`
+
+---
+
+<details>
+<summary>📁 全部变更文件 (点击展开)</summary>
+
+```
+M	hl-product-service/src/main/java/com/hulalv/product/controller/ItineraryController.java
+M	hl-product-service/src/main/java/com/hulalv/product/service/ItineraryDayService.java
+M	hl-product-service/src/test/java/com/hulalv/product/service/ItineraryDayServiceTest.java
+```
+</details>
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