chore(#227): bump greenfield ingestor baseline to v0.3.6

[saadqbal]

Why

A customer (Opentarget / Henrik) reported the data ingestor still hitting the "empty cells flagged as non-numeric" error — that's tracebloc/data-ingestors#150, fixed in v0.3.3. Root cause: the chart's greenfield ingestor baseline is frozen at v0.3.2.

• images.ingestor.digest: sha256:d361fa77… is exactly ghcr.io/tracebloc/ingestor:0.3.2 (verified on ghcr).
• Pinned 2026-06-03 (Pin greenfield ingestor baseline to v0.3.2 in client chart #184), never bumped across 0.3.3 / 0.3.4 / 0.3.5 / 0.3.6 (RELEASING.md step 7 made optional in data-ingestors#144).
• The floating 0.3 tag auto-refreshes running deployments, but the baseline still wins on fresh installs (run 0.3.2 for ~15–30 min before converging) and on helm upgrade (re-asserts the baseline) — exactly the customer's situation (new namespace + upgrades).

What

File	Change
client/values.yaml	images.ingestor.digest → sha256:dfdaa7e6… (ingestor:0.3.6, multi-arch amd64+arm64); comment updated with the cumulative 0.3.3→0.3.6 fixes
client/Chart.yaml	version + appVersion 1.5.0 → 1.5.1

Fresh installs and helm upgrade now land on the fixed v0.3.6 image. The new digest is a multi-arch index, so the ingestor-multiarch CI guard stays green. Precedent: #161 (v0.3.0→v0.3.1), #185 (v0.3.1→v0.3.2).

Closes #227.

Not in this PR

• image-refresh: surface persistent ingestor (ghcr) digest-resolve failures instead of silently skipping #190 (image-refresh silently skipping when the ghcr digest can't resolve) — if the customer's on-prem cluster can't reach ghcr.io, auto-refresh never rolls forward and he'd be permanently stuck on the baseline. Needs his cluster diagnostics; tracked separately.
• Immediate customer unblock (independent of this chart release): helm upgrade <release> tracebloc/client -n <ns> --reuse-values --set images.ingestor.digest=sha256:dfdaa7e633a8df0f46b403e9422eba5c16bdb7d9c39047e6d3738f9e38fbdba8.

Note for reviewers

Release-gated chart change — needs a second approver (no self-approve), and the chart must be promoted/published (develop→main) before customers can helm upgrade onto 1.5.1.

🤖 Generated with Claude Code

---

Note

Low Risk
Release-only digest and version pinning in the Helm chart; no runtime logic changes in this repo, with the new digest remaining a multi-arch index per existing CI expectations.

Overview
Bumps the client Helm chart to 1.5.1 and moves the greenfield images.ingestor.digest baseline from ingestor v0.3.2 to v0.3.6 (sha256:dfdaa7e6…), so fresh installs and helm upgrade start jobs-manager with the fixed ingestor image instead of staying on the stale pin.

The values.yaml comment is updated to document why the jump skips 0.3.3–0.3.5 (cumulative NULL/empty-cell ingestion fixes, including data-ingestors#150). The floating images.ingestor.tag: "0.3" is unchanged; only the explicit baseline digest and chart version move forward.

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[LukasWodka]

👋 Heads-up — Code review queue is at 9 / 8

Above the WIP limit. The team convention is to review existing PRs before opening new work.

Open PRs currently in Code review (oldest first):

• client#215 — Post-install self-verification of CLI usability (#738) · author: @LukasWodka · no reviewer assigned
• client#223 — test(charts): add helm-unittest suite for requests-proxy-service template · author: @saadqbal · no reviewer assigned
• client#224 — fix(Wire SINGLE_NODE flag: chart default from hostPath.enabled + installer sets it #222): wire SINGLE_NODE — chart default from hostPath.enabled + installer · author: @saadqbal · no reviewer assigned
• client#225 — fix(mysql): probe over TCP so a moved socket can't kill a healthy DB · author: @LukasWodka · reviewer: @saadqbal
• client#226 — fix(ingestor): bump baseline image digest v0.3.2 → v0.3.6 (fixes LMU helm-upgrade regression) · author: @LukasWodka · reviewer: @saadqbal
• client-runtime#93 — fix(chore: revert default CODEOWNERS (back to author-picks-reviewer) #92): gate GPU→CPU pending fallback to single-node clusters · author: @saadqbal · no reviewer assigned
• data-ingestors#169 — feat: add token_classification (NER/POS) ingestion · author: @shujaatTracebloc · reviewer: @divyasinghds
• design-system#38 — feat(molecules): add ButtonGroup + InputButtonCombo · author: @waqaskhanroghani · reviewer: @saadqbal
• tracebloc-client#355 — fix(object_detection): scale RCNN targets to pixel space · author: @shujaatTracebloc · reviewer: @divyasinghds

Pull from review before opening new work. (This is a nudge from the kanban WIP check, not a block.)