- Set POLL_INTERVAL=0, off, false, or disabled to disable background polling
- When disabled, data is fetched on-demand when a user opens the dashboard
- On-demand results cached for 30s so other users benefit from fresh data
- A user with a faster refresh rate keeps the cache warm for everyone
- When polling is enabled, behaviour is unchanged (default 5s)
- New poller.js polls all services on a configurable interval
- POLL_INTERVAL env var (default 5000ms / 5 seconds)
- All data stored in cache with TTL of 3x poll interval
- Dashboard endpoint now reads from cache only (no network calls)
- API responses are near-instant regardless of service count
- First poll runs immediately on server start
