Add 20-second game.status WebSocket heartbeat from active shard monitors
containing full game state, and GET /status-live REST endpoint for on-demand
polling. Fix missing token destructuring in SessionInfo causing crash.
Relax frontend polling from 3s to 60s since WebSocket events now cover
real-time updates. Bump version to 0.6.0.
Made-with: Cursor
- Authenticate with JWT before subscribing to session events
- Use message.type instead of message.event (matches server format)
- Handle all new shard monitor events (room.connected, lobby.*,
game.started, game.ended, room.disconnected)
- Replace never-set 'waiting' status with 'monitoring'
- Show monitoring indicator with live player count
Made-with: Cursor
