增加保存失败后自动检测登录状态

main.py

@@ -325,6 +325,14 @@ def automate_browser(topic_id, title, driver, main_window, headers, cookies):
         else:
             log(f"话题 {topic_id} ({title}) 未找到保存按钮，截图保存", "ERROR")
             driver.save_screenshot(f"save_not_found_{topic_id}.png")
+            
+            # 检查登录状态
+            if not check_login_status(driver):
+                log("检测到登录已失效", "WARNING")
+                global is_logged_in
+                is_logged_in = False
+                send_webhook_notification("直播系统登录已失效，需要手动重新登录", True)
+            
             driver.close()
             driver.switch_to.window(main_window)
             return False