Add node_id to metrics snapshot so the health tab shows which instance
the user is viewing from. Hoist nodeID computation so it works on both
SQLite and Postgres deployments. Fix cluster node card overflow with
text-overflow ellipsis and proper flex constraints.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Admin Health tab under Monitoring with auto-refreshing runtime, DB,
cluster, and extension metrics panels. New GET /api/v1/admin/metrics
endpoint. Fattened heartbeat JSONB with stack, GC CPU%, extension
count, sandbox stats, trigger fires. Sandbox runner and trigger engine
now track cumulative execution counters. Event bus tracks publish/deliver
counts. Health endpoints consolidated via shared builder. Block renderers
(mermaid, katex, csv-table, diff-viewer) no longer require chat.
cluster-dashboard package retired — merged into admin Health tab.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
