class XhsBridgeError(Exception):
    """框架基础异常。"""


class ProcessError(XhsBridgeError):
    """Skills 引擎进程启动或停止失败。"""


class SkillsError(XhsBridgeError):
    """Skills CLI / Bridge 调用失败。"""


class LicenseError(XhsBridgeError):
    """激活码无效或已过期。"""


class LicenseRequiredError(LicenseError):
    """未激活或授权已过期，需重新获取激活码。"""


class HumanGuardError(XhsBridgeError):
    """拟人化防护拦截或节奏限制。"""