The jump from "OK" to "Never again" is too big and most
disappointments live in the gap (user, 2026-07-28) — so a merely poor
meal either flattered itself as OK or got blacklisted.
Only 'never' raises the warning on a future order. A blacklist that fires
for every mediocre delivery is one nobody reads, so 'bad' records the
disappointment without triggering the alarm. Both set order_again = false
— you would not choose either again — and that split between "would I
order it" and "warn me about it" is the point of the extra level.
Migration widens the CHECK; nothing is removed, so no existing row needs
mapping.
