Detailed implementation plan for adding WS support directly to wzp-relay: - Abstract Participant over transport type (Quic + WebSocket enum) - New --ws-port flag for browser connections - Cross-transport fan-out (QUIC↔WS in same rooms) - Auth, room management, session cleanup unchanged - Eliminates wzp-web container entirely Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>