feat: 新增 isSignupEntryHost 函数以支持 chatgpt.com 和 chat.openai.com 的注册页面识别，更新相关测试用例

tests/step8-stop-cleanup.test.js

@@ -70,6 +70,7 @@ let autoRunActive = true;
 let autoRunCurrentRun = 2;
 let autoRunTotalRuns = 3;
 let autoRunAttemptRun = 4;
+const AUTO_RUN_TIMER_KIND_SCHEDULED_START = 'scheduled_start';
 
 const added = {
   beforeNavigate: 0,
@@ -128,6 +129,9 @@ async function broadcastAutoRunStatus() {}
 async function getState() {
   return { autoRunning: false };
 }
+function getPendingAutoRunTimerPlan() {
+  return null;
+}
 function isAutoRunScheduledState() {
   return false;
 }