Release client chart v1.6.1 (fast-follow: proxy-key gate #238 + appVersion lockstep)

[saadqbal]

Release client chart v1.6.1

Fast-follow patch to v1.6.0 (already live on gh-pages), shipping the fixes in #238 / PR #239. Publishing flips the hourly auto-upgrade fleet-wide: auto-upgrade-ON clients move 1.6.0 → 1.6.1 at their next :23 cronjob.

Contents (develop, ahead of main via #239)

• Refine #236: gate proxy-key exclusion on HTTP_PROXY_HOST (preserve direct HTTP_PROXY) #238: gate jobs-manager proxy-key exclusion on HTTP_PROXY_HOST — preserves a directly-set env.HTTP_PROXY when no host is set (fixes a 1.6.0 upgrade regression for raw-HTTP_PROXY proxy clusters).
• Chart version/appVersion lockstep restored: both → 1.6.1 (1.6.0 stranded appVersion at 1.5.1, so the app.kubernetes.io/version label mis-reported).

Validation

• CI gate green: helm lint, 4-platform template render, schema validation ×4, 196 unit tests, source-of-truth drift, multi-arch ingestor, Cursor Bugbot. PR release: client chart 1.6.1 — proxy-key exclusion gate (#238) + appVersion lockstep #239 approved.
• Delta over 1.6.0 is template-only and a no-op for any cluster without a proxy (entire known fleet incl. hasan-prod/stg/dev) — the only render change for them is the app.kubernetes.io/version label.

Steps

1. Merge release: client chart 1.6.1 — proxy-key exclusion gate (#238) + appVersion lockstep #239 → develop. ✅
2. Sync develop → main (PR).
3. Publish GitHub Release v1.6.1 (tag on main) → triggers release-helm-chart.yaml → packages client + ingestor → gh-pages index.yaml.
4. Verify client-1.6.1 in https://tracebloc.github.io/client/index.yaml.

Acceptance

• client-1.6.1.tgz + updated index.yaml on gh-pages
• auto-upgrading clients converge to 1.6.1

[saadqbal]

✅ Released. release-helm-chart.yaml succeeded (17s); v1.6.1 published.

• client-1.6.1.tgz + updated index.yaml on gh-pages (verified on the gh-pages branch and the live Pages site — version: 1.6.1, appVersion: 1.6.1)
• (passive) auto-upgrade-ON clients converge 1.6.0 → 1.6.1 at their next :23 cronjob

Contents: #238 proxy-key gate + version/appVersion lockstep. Delta over 1.6.0 is template-only and a no-op for non-proxy clusters.