fix(websocket): reset unmountedRef on each effect re-run so token refresh reconnects (#721)

The effect cleanup sets unmountedRef.current = true to prevent reconnects after
the provider unmounts. Without an inverse reset at the start of the effect,
re-running the effect (e.g. when the auth token rotates) leaves the ref true,
and connect() short-circuits at its unmounted guard. The socket then stays
permanently disconnected for the lifetime of the provider.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: Haile <118998054+blackmammoth@users.noreply.github.com>

src/contexts/WebSocketContext.tsx

@@ -36,6 +36,10 @@ const useWebSocketProviderState = (): WebSocketContextType => {
   const { token } = useAuth();
 
   useEffect(() => {
+    // The cleanup below sets unmountedRef = true. Without this reset, every
+    // re-run of the effect (e.g. on token refresh) would short-circuit connect()
+    // at its unmounted guard and leave the socket permanently disconnected.
+    unmountedRef.current = false;
     connect();
 
     return () => {