修复(#19): 续费订单支持限时活动价 (#19)

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

internal/logic/public/order/promoPricing.go

@@ -58,3 +58,26 @@ func calculatePurchasePrice(
 	result.DiscountAmount = originalPrice - result.PayableBase
 	return result, nil
 }
+
+func calculateRenewalPrice(
+	ctx context.Context,
+	svcCtx *svc.ServiceContext,
+	userID int64,
+	subscribeID int64,
+	unitPrice int64,
+	quantity int64,
+	discounts []types.SubscribeDiscount,
+	eligibleForDiscount bool,
+) (*orderPriceResult, error) {
+	return calculatePurchasePrice(
+		ctx,
+		svcCtx,
+		userID,
+		subscribeID,
+		unitPrice,
+		quantity,
+		discounts,
+		eligibleForDiscount,
+		false,
+	)
+}