fix mini program payment bridge

src/components/rpg-entry/RpgEntryHomeView.tsx

@@ -211,6 +211,7 @@ const RECOMMEND_ENTRY_SWIPE_THRESHOLD_PX = 36;
 const RECOMMEND_ENTRY_COMMIT_ANIMATION_MS = 180;
 const RECOMMEND_ENTRY_DRAG_LIMIT_PX = 160;
 const WECHAT_MINI_PROGRAM_PAYMENT_CHANNEL = 'wechat_mp';
+const WECHAT_JS_SDK_URL = 'https://res.wx.qq.com/open/js/jweixin-1.6.0.js';
 
 type ProfilePopupPanel = 'invite' | 'redeem' | 'community';
 type RechargeTab = 'points' | 'membership';
@@ -2341,16 +2342,56 @@ function clearWechatPayResultHash() {
   window.history.replaceState(null, '', nextUrl);
 }
 
-function requestWechatMiniProgramPayment(
+function loadWechatJsSdk() {
+  if (typeof window === 'undefined') {
+    return Promise.reject(new Error('请在微信小程序内完成支付'));
+  }
+  if (window.wx?.miniProgram?.navigateTo) {
+    return Promise.resolve(window.wx);
+  }
+
+  return new Promise<NonNullable<Window['wx']>>((resolve, reject) => {
+    const existingScript = document.querySelector<HTMLScriptElement>(
+      `script[src="${WECHAT_JS_SDK_URL}"]`,
+    );
+    const complete = () => {
+      if (window.wx?.miniProgram?.navigateTo) {
+        resolve(window.wx);
+      } else {
+        reject(new Error('请在微信小程序内完成支付'));
+      }
+    };
+
+    if (existingScript) {
+      existingScript.addEventListener('load', complete, { once: true });
+      existingScript.addEventListener(
+        'error',
+        () => reject(new Error('请在微信小程序内完成支付')),
+        { once: true },
+      );
+      complete();
+      return;
+    }
+
+    const script = document.createElement('script');
+    script.src = WECHAT_JS_SDK_URL;
+    script.async = true;
+    script.onload = complete;
+    script.onerror = () => reject(new Error('请在微信小程序内完成支付'));
+    document.head.appendChild(script);
+  });
+}
+
+async function requestWechatMiniProgramPayment(
   payload: WechatMiniProgramPayParams | null | undefined,
   orderId: string,
 ) {
-  const miniProgram = window.wx?.miniProgram;
-  if (
-    !payload ||
-    !miniProgram ||
-    typeof miniProgram.navigateTo !== 'function'
-  ) {
+  if (!payload) {
+    return Promise.reject(new Error('请在微信小程序内完成支付'));
+  }
+  const wxBridge = await loadWechatJsSdk();
+  const miniProgram = wxBridge.miniProgram;
+  if (!miniProgram || typeof miniProgram.navigateTo !== 'function') {
     return Promise.reject(new Error('请在微信小程序内完成支付'));
   }
   const navigateTo = miniProgram.navigateTo;