feat(orders): a fifth verdict, 'bad', between ok and never again

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.

src/lib/hooks.ts

@@ -277,7 +277,7 @@ export function useOrderReceipt(transactionId: number) {
   });
 }
 
-export type OrderRating = "loved" | "liked" | "ok" | "never";
+export type OrderRating = "loved" | "liked" | "ok" | "bad" | "never";
 export type ItemVerdict = "loved" | "never";
 
 export interface ItemOpinion {