fix(ux): recoverable route error screen + smoke-test shop/spot routes

- The per-route 'slammed' screen only offered 'Go back', so a stale-chunk
  failure after a deploy trapped the user. Add a primary 'Reload' that clears
  the lazyWithRetry session flag and does a fresh reload.
- Smoke test now boots /shop/:pubkey/:identifier, /spot/…, /event/…, /crew/…
  so a broken detail route can't ship again.
- Investigation note: no reproducible slam across 11 live shops; the report
  matched a transient chunk miss from two rapid deploys.

scripts/smoke-test.mjs

@@ -148,6 +148,10 @@ const ROUTES = [
   '/card',
   '/card/npub1yrnuj56rnen08zp2h9h7p74ghgjx6ma39spmpj6w9hzxywutevsst7k5cx',
   '/verify/notarealnaddr',
+  '/shop/abc/def',
+  '/spot/abc/def',
+  '/event/abc/def',
+  '/crew/abc/def',
   '/messages/group/abc123',
 ];
 const problems = [];

src/components/RouteErrorBoundary.tsx

@@ -16,6 +16,15 @@ import { ErrorBoundary } from '@/components/ErrorBoundary';
 export function RouteErrorBoundary({ children }: { children: React.ReactNode }) {
   const location = useLocation();
 
+  // After a deploy an already-open tab can hold a stale module graph, so a lazy
+  // route import 404s. `lazyWithRetry` reloads once; if it still fails the
+  // boundary is shown — so give the user a real way out: clear the "already
+  // reloaded" flag and do a fresh reload (fetching the new index + chunks).
+  const hardReload = () => {
+    try { sessionStorage.removeItem('skatespots:chunk-reload'); } catch { /* ignore */ }
+    window.location.reload();
+  };
+
   return (
     <ErrorBoundary
       key={location.pathname}
@@ -31,15 +40,23 @@ export function RouteErrorBoundary({ children }: { children: React.ReactNode })
               </h2>
               <p className="text-sm text-gray-400">
                 Something on this screen tripped up. Your account and data are safe.
-                Head back and try again.
+                Usually a quick reload sorts it out.
               </p>
             </div>
-            <button
-              onClick={() => window.history.back()}
-              className="w-full px-4 py-3 rounded-full font-black uppercase bg-[#ff0040] text-white hover:bg-[#ff0040]/90 transition-colors"
-            >
-              Go back
-            </button>
+            <div className="flex flex-col sm:flex-row gap-2">
+              <button
+                onClick={hardReload}
+                className="flex-1 px-4 py-3 rounded-full font-black uppercase bg-[#ff0040] text-white hover:bg-[#ff0040]/90 transition-colors"
+              >
+                Reload
+              </button>
+              <button
+                onClick={() => window.history.back()}
+                className="flex-1 px-4 py-3 rounded-full font-black uppercase bg-white/5 text-gray-300 border border-white/10 hover:bg-white/10 transition-colors"
+              >
+                Go back
+              </button>
+            </div>
           </div>
         </div>
       }