-- Profil-felter: brugerens valgte kortfarve.
-- card_color = NULL betyder "brug standard answer_id % 6". 0-5 mapper til Jodel-paletten.

ALTER TABLE `users`
    ADD COLUMN `card_color` TINYINT NULL DEFAULT NULL AFTER `avatar_url`,
    ADD CONSTRAINT `chk_users_card_color` CHECK (`card_color` IS NULL OR `card_color` BETWEEN 0 AND 5);
