fix(browser/captcha): avoid login buttons

Author: idiotWu

npiai/core/tool/_browser.py

@@ -356,7 +356,7 @@ async def handle_captcha(captcha_type: Literal["none", "captcha", "login"]):
                         NOTE: 
                         - Popups like cookie consent banners should not be considered as login forms.
                         - The login action can be ignored if the main content is visible in the screenshot.
-                        - Login button that triggers a login form should not be considered as login forms. Only visible login forms should be considered.
+                        - Login button that triggers a login form should not be considered as login forms. Only visible login forms with input fields should be considered.
                         """
                     ),
                 ),