fix(KIP-10689): 【DE】【C端】【杭州】。未登录用户在使用纸质优惠券时，不会抵扣对应的金额

src/store/order/paperCoupon.js

@@ -37,6 +37,11 @@ export default {
     try {
       const orderDetail = {...state.orderDetail};
       setSelected(['coupons','consume','points','memberGrade'], orderDetail)
+      if (!orderDetail?.discountInfo?.paperCoupons) {
+        orderDetail.discountInfo =  {
+          paperCoupons: []
+        }
+      } 
       orderDetail.discountInfo.paperCoupons = paperCoupons.map(elm => {
         return {
           ...elm,