build(typedoc): migrate to tsdown

[lachlancollins]

🎯 Changes

✅ Checklist

• I have followed the steps in the Contributing guide.
• I have tested this code locally with pnpm test:pr.

🚀 Release Impact

• This change affects published code, and I have generated a changeset.
• This change is docs/CI/dev-only (no release).

[changeset-bot]

🦋 Changeset detected

Latest commit: ae4f98a

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@tanstack/typedoc-config	Patch

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[nx-cloud]

View your CI Pipeline Execution ↗ for commit ae4f98a

Command	Status	Duration	Result
nx affected --targets=test:sherif,test:docs,tes...	✅ Succeeded	27s	View ↗
nx run-many --target=build	✅ Succeeded	11s	View ↗

---

☁️ Nx Cloud last updated this comment at 2025-12-06 12:35:45 UTC

[pkg-pr-new]

npm i https://pkg.pr.new/@tanstack/eslint-config@327

npm i https://pkg.pr.new/@tanstack/publish-config@327

npm i https://pkg.pr.new/@tanstack/typedoc-config@327

npm i https://pkg.pr.new/@tanstack/vite-config@327

commit: ae4f98a

[github-actions]

🎉 This PR has been released!

• @tanstack/[email protected]

Thank you for your contribution!