fix(trust): H15 — relay outage must not read as 'not found'/'no events'

- useMarketplaceItem / useSkateEvents now pass requireAny, so a total outage
  throws (isError) instead of silently returning [].
- ListingDetailPage and EventsPage render the shared ErrorState with a retry
  instead of a false 'Listing not found' / 'No upcoming events'.

src/hooks/useMarketplace.ts

@@ -106,7 +106,7 @@ export function useMarketplaceItem(pubkey?: string, identifier?: string) {
       const signal = AbortSignal.timeout(TIMEOUT);
       const events = await querySkateContent(
         [{ kinds: [MARKETPLACE_ITEM_KIND], authors: [pubkey], '#d': [identifier], limit: 5 }],
-        { signal },
+        { signal, requireAny: true },
       );
       const newest = [...events].sort((a, b) => b.created_at - a.created_at)[0];
       return newest ? parseMarketplaceItem(newest) : null;

src/hooks/useSkateEvents.ts

@@ -24,7 +24,7 @@ export function useSkateEvents(limit = 50, options: { includeHidden?: boolean }
             limit,
           },
         ],
-        { signal }
+        { signal, requireAny: true }
       );
 
       const skateEvents: SkateEvent[] = [];

src/pages/EventsPage.tsx

@@ -46,6 +46,7 @@ import {
 } from 'lucide-react';
 import { cn } from '@/lib/utils';
 import { EmptyState as SharedEmptyState, type EmptyStateAction } from '@/components/EmptyState';
+import { ErrorState } from '@/components/ErrorState';
 
 // ─── Accent colours ───────────────────────────────────────────────────────────
 
@@ -822,8 +823,8 @@ export default function EventsPage() {
   const followCount = followingList?.length ?? 0;
   const smartDefault: TrustFilterLevel = (user && followCount >= 5) ? 'trusted' : 'all';
 
-  const { data: events, isLoading: eventsLoading } = useSkateEvents(100);
-  const { data: tours, isLoading: toursLoading } = useTours(100);
+  const { data: events, isLoading: eventsLoading, isError: eventsError, refetch: refetchEvents } = useSkateEvents(100);
+  const { data: tours, isLoading: toursLoading, isError: toursError, refetch: refetchTours } = useTours(100);
 
   // ── View state ──────────────────────────────────────────────────────────────
   const [mainView, setMainView] = useState<MainView>('events');
@@ -1228,6 +1229,8 @@ export default function EventsPage() {
           {mainView === 'events' && layout === 'list' && (
             eventsLoading ? (
               <SkeletonGrid />
+            ) : eventsError ? (
+              <ErrorState onRetry={() => { void refetchEvents(); }} />
             ) : activeTab === 'upcoming' ? (
               filteredEvents.upcoming.length > 0 ? (
                 <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6 stagger-children">
@@ -1280,6 +1283,8 @@ export default function EventsPage() {
           {mainView === 'tours' && layout === 'list' && (
             toursLoading ? (
               <TourSkeletonGrid />
+            ) : toursError ? (
+              <ErrorState onRetry={() => { void refetchTours(); }} />
             ) : filteredTours.length > 0 ? (
               <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6 stagger-children">
                 {filteredTours.map((tour) => (

src/pages/ListingDetailPage.tsx

@@ -22,6 +22,7 @@ import { useCurrentUser } from '@/hooks/useCurrentUser';
 import { useAuthor } from '@/hooks/useAuthor';
 import { useSellerInfo } from '@/hooks/useSellerInfo';
 import { useToast } from '@/hooks/useToast';
+import { ErrorState } from '@/components/ErrorState';
 import { formatPrice, GEAR_CONDITIONS, GEAR_CATEGORIES } from '@/lib/types';
 import { GEAR_CATEGORY_KEYS, GEAR_CONDITION_KEYS } from '@/lib/labelKeys';
 import { genUserName } from '@/lib/genUserName';
@@ -54,7 +55,7 @@ export default function ListingDetailPage() {
   const { user } = useCurrentUser();
   const { toast } = useToast();
 
-  const { data: item, isLoading } = useMarketplaceItem(pubkey, identifier);
+  const { data: item, isLoading, isError, refetch } = useMarketplaceItem(pubkey, identifier);
   const author = useAuthor(pubkey);
   const metadata = author.data?.metadata;
   const { data: sellerInfo } = useSellerInfo(pubkey);
@@ -83,6 +84,14 @@ export default function ListingDetailPage() {
     );
   }
 
+  if (isError) {
+    return (
+      <div className="container mx-auto max-w-md px-4 py-16">
+        <ErrorState onRetry={() => { void refetch(); }} />
+      </div>
+    );
+  }
+
   if (!item) {
     return (
       <>