fix: Bug - User login status showing as both logged in and logged out

Stop treating transient auth_required as home-session expiry, keep auth scope
consistent across login redirect and server-rail joins, and leave /login when
the in-memory user is still authenticated.

Co-authored-by: Cursor <cursoragent@cursor.com>

toju-app/src/app/infrastructure/realtime/realtime-session.service.ts

@@ -312,7 +312,11 @@ export class WebRTCService implements OnDestroy {
 
   private handleSignalingMessage(message: IncomingSignalingMessage, signalUrl: string): void {
     if (message.type === 'auth_required' || message.type === 'auth_error') {
-      this.store.dispatch(UsersActions.signalServerAuthFailed({ signalUrl }));
+      this.store.dispatch(UsersActions.signalServerAuthFailed({
+        signalUrl,
+        reason: message.type
+      }));
+
       return;
     }