Implement server-side disconnect lifecycle and update client handling. Added disconnect_client and broadcast_disconnect in server.py to remove clients, close sockets, and notify remaining clients with a disconnect packet; broadcast_transform now uses disconnect_client for failed recipients and logs delivery counts. Updated fake_client.py to handle disconnect packets, remove remote players from its in-memory table, and improve logging. Documentation (docs/dev-log.md and server/README.md) updated to record the change and next steps.
andrew
52d934dab0