class WebexError(Exception):
    """Webex 渠道基础异常"""


class WebexAuthError(WebexError):
    """Token 无效或已过期"""


class WebexRateLimitError(WebexError):
    """API Rate Limit 超限（SDK 自动处理，此异常为兜底）"""


class WebexWebhookDisabledError(WebexError):
    """Webhook 因连续失败被 Webex 平台禁用"""


class WebexMessageTooLongError(WebexError):
    """消息长度超出 7439 bytes 限制"""