v2.3.22

Added

• Logs page (Settings → Logs, admin-only) — recent hub logs from an in-memory ring
  buffer (~2000 lines), with a filter box, auto-refresh, and Copy / Download, so you can
  grab logs to debug from the UI without kubectl logs.
• Kubernetes server version on the Clusters list — the cluster agent reads the
  apiserver /version (e.g. v1.29.4) and the cluster card shows it, with the Vantage
  agent version labelled separately (it was previously an unlabelled version badge).

Changed

• Hub logs are written without ANSI colour codes (cleaner in kubectl logs and the new
  Logs page).

Fixed

• Cluster overlay charts rendered empty (500 error). The per-group series query bound
  the time-bucket width as a text parameter (time_bucket(text, …) does not exist) instead
  of inlining the allowlisted constant, so CPU/memory charts on the Cluster page failed.
  Inlined it, matching the single-series query. Regression-guarded in
  scripts/check-kube-stats.sh.

Full Changelog: v2.3.21...v2.3.22