Add LegacyDoc AI to extensions

[Dusangrm]

Adds LegacyDoc AI, a VS Code extension that generates AI code audit reports, JSDoc, Markdown docs, and Mermaid architecture diagrams from a codebase.

• File added: src/content/resources/extensions/legacydoc-ai.md
• Category: extensions
• Pricing type: freemium
• Schema fields used: name, description, categorySlug, link, iconUrl, previewImage, type, pricing, tags
• pnpm build passes locally

Product page: https://www.romanticode.com/legacydoc-ai/
Tool page: https://www.romanticode.com/tools/ai-code-audit-report/
Marketplace: https://marketplace.visualstudio.com/items?itemName=ruilegendoc.legacy-doc-ai

Thanks for maintaining the directory.

[vercel]

Someone is attempting to deploy a commit to the catalinpit's projects Team on Vercel.

A member of the Team first needs to authorize it.

[Dusangrm]

Small note on the Vercel check: it appears to require deployment authorization on the maintainer side rather than failing during the project build. I verified locally with Node 22 + pnpm 11: pnpm build completes successfully and generates /extensions/legacydoc-ai/.