🐞 fix: 修复无法创建订单的问题

apis/Order/CreateOrder.js

@@ -230,6 +230,7 @@ class CreateOrder extends API {
             })
         }
 
+        let couponLockKey = null
         try {
             const goodsSql = 'SELECT name, price, num, state FROM goods WHERE id = ?'
             const goodsRows = await db.query(goodsSql, [goods_id])
@@ -257,7 +258,6 @@ class CreateOrder extends API {
             let discountAmount = 0
             let couponId = null
             let appliedCouponCode = null
-            let couponLockKey = null
 
             if (coupon_code && String(coupon_code).trim()) {
                 let couponResult = await validateCoupon({