- Document WebSocket-streamed live metrics (2s) with 5s polling fallback, the overview KPIs and live charts, and the cluster-view toggle (aggregated vs this-node, disabled in single-node).
- Complete the API endpoint list (stats, cache, ws/stats, cluster endpoints, cache/clear) to match the registered routes. - Regenerate static/admin-dashboard.png for the redesigned dashboard.
Fixes the stale 'auto-refreshes every 5 seconds' claim.
