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 {

src/lib/order-reviews.ts

@@ -26,14 +26,19 @@ import { queryRaw, queryRow } from "@/lib/db";
  */
 
 /**
- * Four levels, because three collapsed the distinction that decides a
- * re-order: "loved" and "liked" are both "would order again", but only one is
- * worth going out of your way for, and "ok" is not a recommendation at all
- * (user, 2026-07-28).
+ * Five levels. Three collapsed the distinction that decides a re-order —
+ * "loved" and "liked" are both "would order again" but only one is worth going
+ * out of your way for, and "ok" is not a recommendation at all. "bad" was added
+ * because the jump from "ok" to "never again" is too big and most
+ * disappointments live in the gap (user, 2026-07-28).
+ *
+ * Only "never" raises the warning on a future order. A blacklist that fires for
+ * every mediocre meal stops being read, so "bad" records the disappointment
+ * without triggering the alarm.
  */
-export type Rating = "loved" | "liked" | "ok" | "never";
+export type Rating = "loved" | "liked" | "ok" | "bad" | "never";
 
-export const RATINGS: Rating[] = ["loved", "liked", "ok", "never"];
+export const RATINGS: Rating[] = ["loved", "liked", "ok", "bad", "never"];
 
 /**
  * Per-item opinions, keyed by the line item's description.
@@ -85,7 +90,11 @@ export interface MerchantVerdict {
     transaction_date: string | null;
   }[];
   counts: Record<Rating, number>;
-  /** True when this merchant has ever been marked `never`. */
+  /**
+   * True when this merchant has ever been marked `never` — and ONLY `never`.
+   * "bad" is deliberately excluded: the warning is a blacklist, and one that
+   * fires for every mediocre meal is one nobody reads.
+   */
   warn: boolean;
   /**
    * What to get and what to avoid here, pooled across every order from this
@@ -163,7 +172,7 @@ export async function merchantVerdict(
     [merchant, exclude]
   );
 
-  const counts: Record<Rating, number> = { loved: 0, liked: 0, ok: 0, never: 0 };
+  const counts: Record<Rating, number> = { loved: 0, liked: 0, ok: 0, bad: 0, never: 0 };
   for (const r of rows) if (r.rating) counts[r.rating] += 1;
 
   // Pool item opinions across orders. Case-folded because the same dish comes

src/lib/slack-blocks.ts

@@ -30,6 +30,7 @@ const RATING_LABEL: Record<Rating, string> = {
   loved: "Loved it",
   liked: "Liked it",
   ok: "OK",
+  bad: "Bad",
   never: "Never again",
 };