notifyTokenRotated method
Notifies the server (via WebSocket) that the auth token has been rotated.
Call this immediately after refreshing the JWT while a real-time
connection is open, so the server can update its session record
without forcing a reconnect. If the channel is closed (or running
in manual/polling mode without a live socket) this is a no-op.
Implementation
@override
Future<void> notifyTokenRotated() async {}