feat(market): notify the buyer of offer outcomes too

Terminal responses ended the thread early, so 'useIncomingOffers' (awaiting me
only) skipped the accepted/declined outcome of YOUR offer. Added
useOfferThreadsAddressedToMe (any thread whose newest message is theirs) and
classify it: open -> offer/counter, else accepted/declined/withdrawn. Bell card
+ OS notification titles cover the new states.

src/components/OsNotificationBridge.tsx

@@ -195,9 +195,15 @@ function tradeCandidate(n: TradeNotification): Candidate {
   const title =
     n.type === 'trade-request'
       ? 'Confirm a trade'
+      : n.type === 'offer'
+        ? 'New offer on your listing'
         : n.type === 'counter'
           ? 'Counter-offer'
-        : 'New offer on your listing';
+          : n.type === 'accepted'
+            ? 'Offer accepted 🎉'
+            : n.type === 'declined'
+              ? 'Offer declined'
+              : 'Offer withdrawn';
   return {
     key: `trade:${n.id}`,
     source: 'trades',

src/components/TradeNotificationCard.tsx

@@ -1,6 +1,6 @@
 import { Link } from 'react-router-dom';
 import { nip19 } from 'nostr-tools';
-import { ArrowLeftRight, Handshake, BadgeCheck } from 'lucide-react';
+import { ArrowLeftRight, Handshake, BadgeCheck, CheckCircle2, XCircle, Undo2 } from 'lucide-react';
 import { Avatar, AvatarFallback, AvatarImage } from '@/components/ui/avatar';
 import { useAuthor } from '@/hooks/useAuthor';
 import { genUserName } from '@/lib/genUserName';
@@ -9,11 +9,14 @@ import { cn } from '@/lib/utils';
 
 const TYPE_META: Record<
   TradeNotification['type'],
-  { icon: typeof Handshake; className: string; label: string }
+  { icon: typeof Handshake; className: string; label: string; actionable: boolean }
 > = {
-  offer: { icon: Handshake, className: 'bg-[#ccff00]/15 text-[#ccff00]', label: 'New offer' },
+  offer: { icon: Handshake, className: 'bg-[#ccff00]/15 text-[#ccff00]', label: 'New offer', actionable: true },
-  counter: { icon: ArrowLeftRight, className: 'bg-orange-500/15 text-orange-400', label: 'Counter-offer' },
+  counter: { icon: ArrowLeftRight, className: 'bg-orange-500/15 text-orange-400', label: 'Counter-offer', actionable: true },
-  'trade-request': { icon: BadgeCheck, className: 'bg-teal-500/15 text-teal-300', label: 'Confirm a trade' },
+  accepted: { icon: CheckCircle2, className: 'bg-[#ccff00]/15 text-[#ccff00]', label: 'Offer accepted', actionable: false },
+  declined: { icon: XCircle, className: 'bg-red-500/15 text-red-400', label: 'Offer declined', actionable: false },
+  withdrawn: { icon: Undo2, className: 'bg-gray-700/40 text-gray-400', label: 'Offer withdrawn', actionable: false },
+  'trade-request': { icon: BadgeCheck, className: 'bg-teal-500/15 text-teal-300', label: 'Confirm a trade', actionable: true },
 };
 
 /** A buying/selling step in the notification bell. */
@@ -56,7 +59,7 @@ export function TradeNotificationCard({
         </p>
         <p className="mt-0.5 text-xs text-gray-400">{tradeNotificationText(notification)}</p>
         <p className="mt-1 text-[10px] font-bold uppercase tracking-wide text-[#ccff00]">
-          {notification.type === 'trade-request' ? 'Open listing' : 'Review the offer'} →
+          {meta.actionable ? 'Review the offer' : 'Open listing'} →
         </p>
       </div>
     </Link>

src/hooks/useMarketplaceOffers.ts

@@ -178,6 +178,30 @@ export function useListingOffers(listing?: { pubkey: string; identifier: string
   });
 }
 
+/** Negotiations where the NEWEST message was authored by the other party —
+ *  i.e. everything addressed to `pubkey` that they haven't answered yet,
+ *  including terminal outcomes (accepted / declined / withdrawn). */
+export function useOfferThreadsAddressedToMe(pubkey: string | undefined) {
+  const { querySkateContent, getQueryKeySuffix } = useSkateRelays();
+
+  return useQuery<OfferThread[]>({
+    queryKey: ['offer-threads-to-me', pubkey, getQueryKeySuffix()],
+    enabled: !!pubkey,
+    staleTime: 60 * 1000,
+    queryFn: async () => {
+      if (!pubkey) return [];
+      const events = await querySkateContent(
+        [{ kinds: [OFFER_KIND], '#p': [pubkey], limit: 200 }],
+        { signal: AbortSignal.timeout(8000) },
+      );
+      const messages = dedupeNewest(events)
+        .map(parseOffer)
+        .filter((o): o is MarketplaceOffer => !!o);
+      return toThreads(messages).filter((t) => t.latest.author !== pubkey);
+    },
+  });
+}
+
 /** Negotiations where it's `pubkey`'s turn to answer (across every listing). */
 export function useIncomingOffers(pubkey: string | undefined) {
   const { querySkateContent, getQueryKeySuffix } = useSkateRelays();

src/hooks/useTradeNotifications.ts

@@ -1,16 +1,23 @@
 import { useMemo } from 'react';
-import { useIncomingOffers, type MarketplaceOffer } from '@/hooks/useMarketplaceOffers';
+import { useOfferThreadsAddressedToMe, type MarketplaceOffer } from '@/hooks/useMarketplaceOffers';
 import { useIncomingTradeRequests } from '@/hooks/useTradeAttestations';
 
 /**
  * Trade/offer activity for the logged-in user — the buying/selling steps that
  * deserve a nudge: a new offer on your listing, a counter-offer it's your turn
- * to answer, and a request to confirm a completed trade.
+ * to answer, the outcome of YOUR offer (accepted / declined / withdrawn), and a
+ * request to confirm a completed trade.
  *
  * All of it is derived from events already addressed to the user, so it needs no
  * extra infrastructure — the same events power the bell and the OS notifications.
  */
-export type TradeNotificationType = 'offer' | 'counter' | 'trade-request';
+export type TradeNotificationType =
+  | 'offer'
+  | 'counter'
+  | 'accepted'
+  | 'declined'
+  | 'withdrawn'
+  | 'trade-request';
 
 export interface TradeNotification {
   id: string;
@@ -27,18 +34,25 @@ export interface TradeNotification {
 }
 
 export function useTradeNotifications(pubkey: string | undefined) {
-  const { data: incoming = [], isLoading: offersLoading } = useIncomingOffers(pubkey);
+  const { data: incoming = [], isLoading: offersLoading } = useOfferThreadsAddressedToMe(pubkey);
   const { data: requests = [], isLoading: requestsLoading } = useIncomingTradeRequests(pubkey);
 
   const notifications = useMemo<TradeNotification[]>(() => {
     const out: TradeNotification[] = [];
 
-    // Offers / counter-offers where it is the user's turn to answer.
+    // Every step addressed to me: a new offer, a counter it's my turn to answer,
+    // or the outcome of my own offer (accepted / declined / withdrawn).
     for (const thread of incoming) {
       const latest = thread.latest;
+      const type: TradeNotificationType =
+        latest.status === 'open'
+          ? latest.replyTo
+            ? 'counter'
+            : 'offer'
+          : latest.status;
       out.push({
         id: latest.id,
-        type: latest.replyTo ? 'counter' : 'offer',
+        type,
         createdAt: latest.createdAt,
         counterparty: latest.author,
         amount: latest.amount,
@@ -73,6 +87,12 @@ export function tradeNotificationText(n: TradeNotification): string {
       return n.amount ? `offered ${n.amount.toLocaleString()} ${n.currency ?? 'SATS'}` : 'made an offer';
     case 'counter':
       return n.amount ? `countered with ${n.amount.toLocaleString()} ${n.currency ?? 'SATS'}` : 'sent a counter-offer';
+    case 'accepted':
+      return n.amount ? `accepted your offer — ${n.amount.toLocaleString()} ${n.currency ?? 'SATS'}` : 'accepted your offer';
+    case 'declined':
+      return 'declined your offer';
+    case 'withdrawn':
+      return 'withdrew their offer';
     case 'trade-request':
       return 'asked you to confirm a trade';
     default: