- New server/quic_transport.py using aioquic to accept QUIC connections and datagrams - run.py: QUIC mode when QUIC_CERT/QUIC_KEY provided; else in-memory - requirements.txt: aioquic + cryptography
- Protocol: PacketType, TLV Body types, QUIC varint, header, input_broadcast and config_update builders, 2-bit body bitpacking helper - Config/model: live-config ServerConfig, basic GameState/Snake/Session - Transport: InMemoryTransport placeholder and QUIC server stub - Server: asyncio tick loop, periodic config_update broadcast, immediate input_broadcast relay; main entry and run.py