chore: bump appVersion to 0.2.2 (arrow 0.2.2 / core 0.20.1), chart 0.3.2

[fupelaqu]

Rolls the softclient4es-arrow 0.2.2 release into the federation and sidecar images.

	From	To
chart version	0.3.1	0.3.2
appVersion (image tag)	0.2.1	0.2.2

What the new images carry

arrow 0.2.2 was built against elasticsql core 0.20.1 and extensions 0.2.1:

• elasticsql#157 — a cross-index JOIN now fails loudly when no join-capable extension is installed. Previously it silently executed as a single-index search over the left table (joined columns NULL, orphan rows kept), and INSERT … SELECT / CTAS wrote that wrong data.
• elasticsql#158 — FieldSort preserves the table-alias qualifier on the AST → SQL round-trip. This is the one that mattered most for federation: the JOIN planner re-parses the re-rendered SQL, so a dropped qualifier surfaced as 400 "Ambiguous column" on any federated JOIN with ORDER BY.
• elasticsql#159 — ORDER BY on a bare table alias is rejected instead of rendering a dangling qualifier.

Image availability verified before bumping

Every template derives its tag from .Chart.AppVersion — the federation deployment directly, and each sidecar through softclient4es-federation.sidecarImage in _helpers.tpl. So a bump is only safe once all five images publish the tag. Confirmed on DockerHub:

• softnetwork/softclient4es-federation:0.2.2
• softnetwork/softclient4es{6,7,8,9}-arrow-flight-sql:0.2.2

Goldens

All 7 goldens regenerated (4 base + 3 example). The diff is limited to version labels (helm.sh/chart, app.kubernetes.io/version), image tags, and checksum/config annotations — the ConfigMap embeds the chart/version labels, so its hash necessarily moves with them. There was no pre-existing drift before this change, so nothing unrelated is mixed in.

Verification — full CI gate run locally

• helm lint on the chart and on every tests/values/*.yaml and examples/*/values.yaml — 0 failures
• helm template + kubeconform -strict -kubernetes-version 1.29.0 on base and all 6 value sets — 3–11 resources per render, 0 invalid, 0 errors
• golden diff on all 7 renders — all match
• zero-kind: Secret contract (Story 16.3) — 0
• heterogeneous-ready / three-region discriminator (16.4 A2b) — 3 vs 0 commented duckdb-attach previews

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