From 430b7b0652b79b01082d0f1062a3f00ccb623243 Mon Sep 17 00:00:00 2001
From: API Changelog Bot <changelog@hulalv.com>
Date: Mon, 30 Mar 2026 09:25:34 +0800
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+# 修复：产品详情早鸟优惠字段不返回
+
+- **日期**: 2026-03-30
+- **PR**: #31
+- **服务**: hl-mp-service
+- **类型**: fix
+
+## 问题
+
+`GET /mp/product/{productId}` 产品详情接口的 earlyBirdDiscount、earlyBirdPlanName、earlyBirdText 始终为 null。
+
+## 根因
+
+内部调用 `/match` 接口时传 totalPrice=null，被价格校验拦截直接返回 null。
+
+## 修复
+
+改用 `/by-product` 接口按产品ID+日期+启用状态匹配，不依赖价格参数。
+
+## 前端影响
+
+- 无接口变更，字段不变
+- 修复后有早鸟计划的产品会正确返回 earlyBirdDiscount、earlyBirdPlanName、earlyBirdText
+
+## 需要重启
+
+- hl-mp-service