fix(weixin-sdk): restore iOS JSSDK entry-URL signing for shop scan

Phone re-login + OAuth on iOS left SPA on a different path than the WebView entry URL, so scanQRCode failed until a full reopen. Sign with the document entry URL again and warm up after auth.

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

apps/h5-shop/src/lib/wechat-auth.ts

@@ -2,6 +2,7 @@ import type { ClientRuntimeConfig, WechatLoginResult } from '@dukang/shared-type
 import { isWxAuthorizeEnabled } from '@dukang/shared-types';
 import { WECHAT_INAPP_REQUIRED_MSG } from '@dukang/weixin-sdk';
 import { isWechatEnv, weixinSdk } from './weixin';
+import { markScanWarmupAfterAuth } from './shop-scan-auth';
 import { request, saveWechatSession, type ShopSessionPayload } from './api';
 
 export type ShopAccountProfile = {
@@ -162,6 +163,7 @@ export async function loginShopWithWechat(): Promise<ShopSessionPayload | null |
   if (!isWechatEnv()) {
     throw new Error(WECHAT_INAPP_REQUIRED_MSG);
   }
+  markScanWarmupAfterAuth();
   const result = await weixinSdk.login();
   if (result) return handleShopWechatLoginResult(result);
 }
@@ -171,6 +173,8 @@ export async function bindShopWechatAfterSmsLogin(): Promise<void> {
   const config = await fetchClientConfig();
   if (!isWxAuthorizeEnabled(config)) return;
   if (!isWechatEnv()) return;
+  // OAuth 整页回跳后 iOS 需用入场 URL 重配 JSSDK；标记下次扫码加长预热
+  markScanWarmupAfterAuth();
   await weixinSdk.login();
 }
 
@@ -180,5 +184,6 @@ export async function authorizeShopWechat(): Promise<WechatLoginResult | void> {
   if (!isWechatEnv()) {
     throw new Error(WECHAT_INAPP_REQUIRED_MSG);
   }
+  markScanWarmupAfterAuth();
   return weixinSdk.login();
 }