Add _intentionalClose flag to suppress error when server closes WebSocket after game_ended broadcast. Clean transition to lobby. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add _intentionalClose flag to suppress error when server closes WebSocket after game_ended broadcast. Clean transition to lobby. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>