class ErrorCode:
    """统一错误码常量，避免魔法数字散落在各个路由中。"""

    SUCCESS = 0
    PARAM_ERROR = 40001
    UNAUTHORIZED = 40002
    FORBIDDEN = 40003
    NOT_FOUND = 40004
    INVALID_STATUS = 40005
    DUPLICATE = 40006
    BUSINESS_RULE_FAILED = 40007
    FILE_UPLOAD_FAILED = 40008
    THIRD_PARTY_FAILED = 40009
    SYSTEM_ERROR = 50000