feat: 添加邮箱验证码页面检测及日志记录，优化验证码输入流程

content/signup-page.js

@@ -166,6 +166,10 @@ function findResendVerificationCodeTrigger({ allowDisabled = false } = {}) {
   return null;
 }
 
+function isEmailVerificationPage() {
+  return /\/email-verification(?:[/?#]|$)/i.test(location.pathname || '');
+}
+
 async function prepareLoginCodeFlow(timeout = 15000) {
   const readyTarget = getVerificationCodeTarget();
   if (readyTarget) {
@@ -173,10 +177,16 @@ async function prepareLoginCodeFlow(timeout = 15000) {
     return { ready: true, mode: readyTarget.type };
   }
 
+  if (isEmailVerificationPage() && isVerificationPageStillVisible()) {
+    log('步骤 7：已进入邮箱验证码页面，正在等待验证码输入框或重发入口稳定。');
+    return { ready: true, mode: 'verification_page' };
+  }
+
   const start = Date.now();
   let switchClickCount = 0;
   let lastSwitchAttemptAt = 0;
   let loggedPasswordPage = false;
+  let loggedVerificationPage = false;
 
   while (Date.now() - start < timeout) {
     throwIfStopped();
@@ -187,6 +197,15 @@ async function prepareLoginCodeFlow(timeout = 15000) {
       return { ready: true, mode: target.type };
     }
 
+    if (isEmailVerificationPage() && isVerificationPageStillVisible()) {
+      if (!loggedVerificationPage) {
+        loggedVerificationPage = true;
+        log('步骤 7：页面已进入邮箱验证码流程，继续等待验证码输入框渲染...');
+      }
+      await sleep(250);
+      continue;
+    }
+
     const passwordInput = document.querySelector('input[type="password"]');
     const switchTrigger = findOneTimeCodeLoginTrigger();