Completes the snooze from slice 3 (#2374), so it's now touchable on both clients (rule #27 — the server side alone was never shippable). Copy is "Not right now" everywhere, never a dislike (rule #101). The parked list even says so out loud: "Nothing here counts against your taste profile." Both clients flip the card in place to a "Not right now" state with an Undo, rather than yanking it out of the grid under the cursor. The row leaves on the next refetch; the persistent way back is a parked-list section below the deck. That list isn't optional garnish — a snoozed candidate is by definition absent from the deck, so without it the DELETE endpoint is unreachable. Android routes the write through the offline MutationQueue per rule #100, as ONE toggle kind (SUGGESTION_SNOOZE_TOGGLE) carrying the desired state rather than two action kinds. That reuses the LIKE_TOGGLE collapse: a queued snooze the user has since undone is dropped unsent instead of replaying after the undo and re-hiding an artist they asked to see. The collapse helper is now a pure top-level function so that rule is unit tested rather than inferred. The repository does NOT enqueue on a 4xx — a permanent rejection would replay to the same failure and would raise a misleading "will sync when online" hint. The common case is a 404 from un-snoozing a row that already lapsed, which is the user's intended end state anyway. Also: an empty deck used to have one meaning (no listening signal yet). It can now also mean "you parked them all", so the empty copy branches — telling that user to go listen to something would be wrong advice. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>