feat: 添加浏览器切换所需错误处理，增强步骤 10 的诊断信息

background.js

@@ -147,6 +147,7 @@ const HOTMAIL_MAILBOXES = ['INBOX', 'Junk'];
 const STOP_ERROR_MESSAGE = '流程已被用户停止。';
 const CLOUDFLARE_SECURITY_BLOCK_ERROR_PREFIX = 'CF_SECURITY_BLOCKED::';
 const CLOUDFLARE_SECURITY_BLOCK_USER_MESSAGE = '您已触发Cloudflare 安全防护系统，已完全停止流程，请不要短时间内多次进行重新发送验证码，连续刷新、反复点击重试会加重风控；请先关闭页面等待 15-30 分钟，让系统的临时限制自动解除。或者更换浏览器';
+const BROWSER_SWITCH_REQUIRED_ERROR_PREFIX = 'BROWSER_SWITCH_REQUIRED::';
 const HUMAN_STEP_DELAY_MIN = 700;
 const HUMAN_STEP_DELAY_MAX = 2200;
 const STEP6_MAX_ATTEMPTS = 3;
@@ -4000,6 +4001,17 @@ function getTerminalSecurityBlockedTitle(error) {
   return 'Cloudflare 风控拦截';
 }
 
+function isBrowserSwitchRequiredError(error) {
+  return getErrorMessage(error).startsWith(BROWSER_SWITCH_REQUIRED_ERROR_PREFIX);
+}
+
+function getBrowserSwitchRequiredMessage(error) {
+  const message = getErrorMessage(error);
+  return message.startsWith(BROWSER_SWITCH_REQUIRED_ERROR_PREFIX)
+    ? message.slice(BROWSER_SWITCH_REQUIRED_ERROR_PREFIX.length).trim()
+    : message;
+}
+
 function broadcastSecurityBlockedAlert(title = '流程已完全停止', message = CLOUDFLARE_SECURITY_BLOCK_USER_MESSAGE, alertText = '检测到 Cloudflare 风控，请暂停当前操作。') {
   chrome.runtime.sendMessage({
     type: 'SECURITY_BLOCKED_ALERT',
@@ -4023,6 +4035,13 @@ async function handleCloudflareSecurityBlocked(error) {
   return message;
 }
 
+async function handleBrowserSwitchRequired(error) {
+  const message = getBrowserSwitchRequiredMessage(error)
+    || '检测到第 10 步的特殊冲突状态，请更换浏览器后重新进行注册登录。';
+  await requestStop({ logMessage: message });
+  return message;
+}
+
 function isVerificationMailPollingError(error) {
   if (typeof loggingStatus !== 'undefined' && loggingStatus?.isVerificationMailPollingError) {
     return loggingStatus.isVerificationMailPollingError(error);
@@ -5326,6 +5345,10 @@ async function executeStep(step, options = {}) {
       await handleCloudflareSecurityBlocked(err);
       throw new Error(STOP_ERROR_MESSAGE);
     }
+    if (isBrowserSwitchRequiredError(err)) {
+      await handleBrowserSwitchRequired(err);
+      throw new Error(STOP_ERROR_MESSAGE);
+    }
     if (!(deferRetryableTransportError && doesStepUseCompletionSignal(step) && isRetryableContentScriptTransportError(err))) {
       await setStepStatus(step, 'failed');
       await addLog(`步骤 ${step} 失败：${err.message}`, 'error');