- Add AgentSocket Durable Object (holds one WS per agent name)
- Add /ws/connect route with GATEWAY_SECRET auth
- Add ws-client.ts with auto-reconnect (exponential backoff 1s-30s)
- serve defaults to WS mode (no cloudflared needed)
- Keep --tunnel-url and --no-tunnel as fallback options
- Endpoints list merges KV heartbeat + DO WebSocket status
Testing: #211
xingyue
18e3dc7603