修复(#85): 按数量匹配订阅促销价

Co-authored-by: multica-agent <github@multica.ai>

internal/logic/public/subscribe/querySubscribeListLogic.go

@@ -77,7 +77,13 @@ func (l *QuerySubscribeListLogic) QuerySubscribeList(req *types.QuerySubscribeLi
 		return nil, err
 	}
 	for i := range list {
-		list[i].Promo = promos[list[i].Id]
+		subscribePromos := promos[list[i].Id]
+		for j := range list[i].Discount {
+			if subscribePromos == nil {
+				continue
+			}
+			list[i].Discount[j].Promo = subscribePromos[list[i].Discount[j].Quantity]
+		}
 	}
 
 	resp.List = list