chore: update self-host image release references

[carderne]

Summary

Stable v4 Docker image builds now also publish v4 and latest tags, giving Docker-based self-hosters a maintained floating tag to use after a stable release. The Kubernetes guide now uses the current Helm chart line and current pinned examples, so new installs and upgrades resolve to the 4.5 chart line instead of the 4.0 line.

Design

The publish workflows add the floating tags only for stable v4.x.x image tags. Prerelease and main builds keep their existing tags.

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Latest commit: d8123ba

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[coderabbitai]

Walkthrough

This pull request modifies two GitHub Actions publish workflows (webapp and worker-v4) to conditionally append v4 and latest Docker image tags when the resolved tag matches the semver pattern v4.x.y. It also updates the Kubernetes self-hosting documentation, changing Helm chart version references from 4.0.x to 4.5.0 across quick-start, default values, custom values, and version-locking examples, including corresponding image tag examples.

Changes

File(s)	Change Summary
.github/workflows/publish-webapp.yml, .github/workflows/publish-worker-v4.yml	Added conditional logic to append v4 and latest tags when resolved tag matches ^v4\.[0-9]+\.[0-9]+$
docs/self-hosting/kubernetes.mdx	Updated Helm chart version references and example image tags from 4.0.x/v4.0.0 to 4.5.0/v4.5.0

Sequence Diagram(s)

flowchart TD
ResolveTag --> CheckSemver
CheckSemver -->|matches v4.x.y| AppendV4AndLatest
CheckSemver -->|no match| KeepOriginalTags
AppendV4AndLatest --> PushImage
KeepOriginalTags --> PushImage

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Estimated code review effort: 2 (Low)

Related issues: None specified.

Related PRs: None specified.

Suggested labels: ci, documentation

Suggested reviewers: None specified.

---

Tags of v4 now bloom and grow,
Latest joins the semver show,
Helm charts pinned to 4.5.0 tight,
Docs and workflows both feel right,
A rabbit hops through YAML and mdx delight. 🐇

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The PR description omits required template sections like Closes #issue, checklist, testing, changelog, and screenshots.	Add the missing template sections, including an issue link, checklist, testing steps, changelog, and screenshots or notes explaining why they are absent.

✅ Passed checks (4 passed)

Check name	Status	Explanation
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.
Title check	✅ Passed	The title matches the main change set: self-host image release references in workflows and Kubernetes docs.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/tri-11601-update-self-hosting-image-references-helm-docs-compose-tag

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[devin-ai-integration]

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commit: d8123ba