feat(gopay): support GoPay Plus checkout flow

background/steps/plus-return-confirm.js

@@ -2,6 +2,7 @@
   root.MultiPageBackgroundPlusReturnConfirm = factory();
 })(typeof self !== 'undefined' ? self : globalThis, function createBackgroundPlusReturnConfirmModule() {
   const PAYPAL_SOURCE = 'paypal-flow';
+  const GOPAY_SOURCE = 'gopay-flow';
   const PLUS_CHECKOUT_SOURCE = 'plus-checkout';
   const PLUS_RETURN_SETTLE_WAIT_MS = 20000;
 
@@ -21,6 +22,10 @@
       if (paypalTabId && await isTabAlive(PAYPAL_SOURCE)) {
         return paypalTabId;
       }
+      const gopayTabId = await getTabId(GOPAY_SOURCE);
+      if (gopayTabId && await isTabAlive(GOPAY_SOURCE)) {
+        return gopayTabId;
+      }
       const checkoutTabId = await getTabId(PLUS_CHECKOUT_SOURCE);
       if (checkoutTabId) {
         return checkoutTabId;
@@ -29,17 +34,17 @@
       if (storedTabId) {
         return storedTabId;
       }
-      throw new Error('步骤 9：未找到 Plus / PayPal 标签页，无法确认订阅回跳。');
+      throw new Error('步骤 9：未找到 Plus / PayPal / GoPay 标签页，无法确认订阅回跳。');
     }
 
     function isReturnUrl(url = '') {
       return /https:\/\/(?:chatgpt\.com|chat\.openai\.com|openai\.com)\//i.test(String(url || ''))
-        && !/paypal\./i.test(String(url || ''));
+        && !/paypal\.|gopay|gojek|midtrans|xendit|stripe/i.test(String(url || ''));
     }
 
     async function executePlusReturnConfirm(state = {}) {
       const tabId = await resolveReturnTabId(state);
-      await addLog('步骤 9：正在等待 PayPal 授权后回跳到 ChatGPT / OpenAI 页面...', 'info');
+      await addLog('步骤 9：正在等待支付授权后回跳到 ChatGPT / OpenAI 页面...', 'info');
       const tab = await waitForTabUrlMatchUntilStopped(tabId, isReturnUrl);
       await addLog('步骤 9：已检测到订阅回跳页面，固定等待 20 秒让页面完成加载。', 'info');
       await sleepWithStop(PLUS_RETURN_SETTLE_WAIT_MS);