fix(h5-shop): 修复闭店/休息中扫码核销弹窗不触发

- 根因：门店非OPEN时后端 preview 拦截，preview 为 null 导致确认按钮 disabled，弹窗永远触发不了
- RedeemConfirmPage：storeClosed 时确认按钮可点→弹开张框；开张后重拉预览并继续核销
- 弹窗文案对齐「门店目前休息中无法核销，是否开启营业」

Co-Authored-By: WorkBuddy <workbuddy@tencent.com>

apps/h5-shop/src/pages/PhoneRedeemPage.tsx

@@ -139,7 +139,7 @@ export default function PhoneRedeemPage() {
 
       <main className="shop-redeem-main">
         {storeClosed && (
-          <p className="shop-redeem-error" style={{ marginBottom: 12 }}>门店当前休息中（未营业），暂不支持核销</p>
+          <p className="shop-redeem-error" style={{ marginBottom: 12 }}>门店目前休息中无法核销，开启营业后可继续</p>
         )}
 
         <section className="shop-redeem-card">
@@ -234,8 +234,8 @@ export default function PhoneRedeemPage() {
       {showOpenModal && (
         <div className="shop-redeem-modal" role="dialog" aria-modal="true">
           <div className="shop-redeem-modal-card">
-            <h4 className="shop-redeem-modal-title">是否开启营业？</h4>
-            <p className="shop-redeem-modal-desc">门店当前休息中，开启营业后即可继续核销。</p>
+            <h4 className="shop-redeem-modal-title">门店休息中</h4>
+            <p className="shop-redeem-modal-desc">门店目前休息中无法核销，是否开启营业？</p>
             <div className="shop-redeem-modal-actions">
               <button
                 type="button"