fix(regions): drop redundant stack field from Stack resource

[Dav-14]

Summary

• Remove spec.stack from the Stack resource in charts/regions/templates/stack.yaml — the stack identity already lives in metadata.name, and the duplicated key produced an unused field in the rendered manifest.
• Bump regions to 3.9.3 and the formance umbrella to 1.8.2; regenerate Chart.lock, READMEs, and charts/membership/values.schema.json.

Test plan

• helm lint charts/regions passes
• helm template charts/regions renders cleanly (via nix develop -c just helm-template charts/regions)
• Schemas regenerate idempotently with helm schema -f values.yaml -o values.schema.json
• CI green

Note: just pre-commit currently fails on main at the helm-schema step because the upstream helm-values-schema-json plugin no longer supports verification and renamed -input → -f. That is being fixed in #353; schemas here were regenerated with the corrected invocation.

🤖 Generated with Claude Code

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 8c6c48c5-2f58-4bb7-90bb-d40b8899242b

📥 Commits

Reviewing files that changed from the base of the PR and between 7049e0c and 2371cbb.

⛔ Files ignored due to path filters (5)

• charts/formance/Chart.lock is excluded by !**/*.lock, !**/*.lock
• charts/formance/Chart.yaml is excluded by !**/*.yaml
• charts/membership/values.schema.json is excluded by !**/*.json
• charts/regions/Chart.yaml is excluded by !**/*.yaml
• charts/regions/templates/stack.yaml is excluded by !**/*.yaml

📒 Files selected for processing (3)

• README.md
• charts/formance/README.md
• charts/regions/README.md

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Walkthrough

Version numbers for two Helm charts are bumped: Formance from 1.8.1 to 1.8.2 and Regions from 3.9.2 to 3.9.3. Updates are reflected consistently across the root README and individual chart README files.

Changes

Helm Chart Version Bumps

Layer / File(s)	Summary
Version Updates README.md, charts/formance/README.md, charts/regions/README.md	Formance chart version incremented to 1.8.2 and Regions chart version incremented to 3.9.3 in all README badges and documentation tables.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Suggested labels

release

Poem

🐰 A hop, a skip, chart versions grow,
From 1.8.1 to 1.8.2 we go!
Regions climb from 3.9.2 with care,
New releases bloom, fresh air!
README's dance, so neat and bright. ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately reflects the main change: removing the redundant stack field from the Stack resource in the regions chart.
Description check	✅ Passed	The description clearly explains the primary change (removing spec.stack), the version bumps, regenerated files, test results, and relevant context about upstream issues.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/regions-stack-redundant-field

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