Panel 3 — live per-node metrics. One row per node from the latest collector frame: a throughput sparkline + rate, a visual p50/p95 latency bar, completed count, and error rate, with a state pill. A totals row sums the network. The frame arrives on a 1 Hz PubSub tick handled by Bloccs.Web.DashboardLive; idle nodes show "—" until traffic flows.