Bun's ws.publish() excludes the sender, so the player making a move never
received the GAME_UPDATE with the new FEN — causing pieces to snap back.
Added ctx.send() alongside ctx.publish() for GAME_UPDATE and GAME_ENDED.
Also redesigned the panel for mobile: hamburger drawer sidebar, responsive
chess board sizing via ResizeObserver, stacked layouts on small screens,
and touch-friendly modals/controls across lobby and game pages.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace useState-based page switching with react-router-dom Routes.
Layout now renders admin or player nav items based on user.role.
Add stub pages for PlayerDashboard, GameLobby, and GameRoom.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
