Online state with the time it came up, down/up alerts, a UGC column in the
health history, /api/servers (every server with its process memory and CPU)
and /api/servers/ugc, and UGC gauges for Prometheus.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Keeps every server's traffic reports (last hour at one second, per-minute
rows to server_traffic once a minute, pruned after traffic_days) and shows
packets, bytes, HTTP requests and latency per second, per server, with the
busiest message types and HTTP routes. Live over the traffic WebSocket topic;
1 hour, 24 hours and 7 days ranges. The same counters are in /metrics.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
