def format_response(data=None, message="Success", status="ok"):
    """Format a standard API response.

    Args:
        data: Response data payload.
        message: Status message.
        status: Status string (ok, error, etc.).

    Returns:
        Dictionary with standardized response format.
    """
    return {
        "status": status,
        "message": message,
        "data": data,
    }