fix(ui): poll vault state so background Amber pairing appears without reload

frontend/src/state/AppProvider.tsx

@@ -141,6 +141,18 @@ export function AppProvider({ children }: { children: ReactNode }) {
     };
   }, []);
 
+  // Background pairing completes server-side with no push channel to the UI
+  // (IPC is request/response), so poll for fresh state: otherwise Home and
+  // Profiles keep showing the pre-pairing snapshot after Amber connects.
+  // getState is a cheap local vault read; errors are ignored here since every
+  // screen surfaces its own request failures.
+  useEffect(() => {
+    const timer = window.setInterval(() => {
+      void refresh().catch(() => {});
+    }, 5000);
+    return () => window.clearInterval(timer);
+  }, [refresh]);
+
   const createProfile = useCallback(
     async (label: string): Promise<ProfileSummary> => {
       const result = await api.createProfile(label, state?.settings);