修复(#85): 促销系统 quantity 设计修正补丁（跨任务统一修复）

- subscribe_promo 表加 quantity 字段，BIGINT NOT NULL DEFAULT 1 - EvaluatePromo 加 quantity 参数，按 subscribeID + quantity 精确匹配 - Promo 从 Subscribe 顶层移到 SubscribeDiscount - 查询加 quantity，返回 map[subscribeID][quantity] 二级映射 - recordPromoUsage 错误向上传播，不再静默吞掉 - preCreate 和 purchase 的 allowPromo 判定统一为 orderType==1 - 迁移脚本增加幂等处理（guarded DROP/ADD/MODIFY） Co-authored-by: multica-agent <github@multica.ai>
2026-05-27 05:57:21 -07:00
parent d12c340743
commit 02b41e7a2c
12 changed files with 281 additions and 34 deletions
@@ -4316,6 +4316,9 @@
        "discount": {
          "type": "number",
          "format": "double"
+        },
+        "promo": {
+          "$ref": "#/definitions/SubscribePromo"
        }
      },
      "title": "SubscribeDiscount",