fix(h5-shop): remove redeem debug UI and enforce WeChat scan flow

Co-authored-by: Cursor <cursoragent@cursor.com>

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

@@ -65,7 +65,7 @@ export default function HomePage() {
 
   async function runScan() {
     if (!isWechatEnv()) {
-      navigate('/redeem');
+      setScanMsg('请在微信内打开门店端进行扫码核销');
       return;
     }
     setScanning(true);
@@ -90,7 +90,7 @@ export default function HomePage() {
   async function handleScan() {
     setScanMsg('');
     if (!isWechatEnv()) {
-      navigate('/redeem');
+      setScanMsg('请在微信内打开门店端进行扫码核销');
       return;
     }
     try {