* @return an OptionalEntity containing the user if found
     */
    public OptionalEntity<User> getUser(final String id) {
        return userBhv.selectByPK(id).map(u -> ComponentUtil.getAuthenticationManager().load(u));
    }

    /**
     * Retrieves a user by their username.
     *
     * @param username the username to search for
     * @return an OptionalEntity containing the user if found
     */