feat: add dev-tools documentation homepage

[ibgreen]

Summary

• replace the minimal dev-tools homepage with a framework-style landing page
• highlight build, test, lint, and publish workflows
• add package cards linking to the existing documentation sections

Validation

• yarn install --immutable
• yarn website:build --config ../../../project-site-configs/dev-tools.mjs

The mounted build was verified with the /dev-tools/ base path.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-03T13:38:09.394496Z	7ddb85a	PR opened

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• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review" or "@codex security review".

Codex reacts with 👀 while any review is running, comments if it has suggestions, and reacts with 👍 once all reviews finish with no findings.

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 7ddb85a9b8

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[coveralls]

Coverage Report for CI Build 37127161280

Coverage remained the same at 58.484%

Details

• Coverage remained the same as the base build.
• Patch coverage: No coverable lines changed in this PR.
• No coverage regressions found.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

No coverage regressions found.

---

Coverage Stats

Relevant Lines:	616
Covered Lines:	350
Line Coverage:	56.82%
Relevant Branches:	492
Covered Branches:	298
Branch Coverage:	60.57%
Branches in Coverage %:	Yes
Coverage Strength:	4.65 hits per line

---

💛 - Coveralls