- mountGame reads playerCount from params (queue passes it from room)
- Server accepts player_count in queue request, creates matching positions
- Queue response includes player_count for both players
- onMatchFound propagates playerCount to game scene
- 2-player live matches now create only 2 positions (not 4 with bots)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>