- Custom server (server.ts) wrapping Next.js + ws on same port
- Ticket-based auth: validates ephemeral nonce from /api/ws-ticket
- Origin validation against allowlist
- Session revalidation every 15 min (sends auth_expired, closes)
- Heartbeat every 30s (ping/pong, terminates dead connections)
- broadcastToUser() for API routes to notify connected clients
- Shared ticket store between API route and WS server via globalThis
- Health endpoint now reports active WS connections
- Dockerfile updated to use custom server
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>