feat: add nuxt-content-mermaid

[andy820621]

🔗 Linked issue

Resolves #1580

📚 Description

Adds @barzhsieh/nuxt-content-mermaid to the Nuxt modules registry.

The module renders Mermaid code blocks from Nuxt Content Markdown as responsive
diagrams, with lazy loading, dark/light theme switching, custom renderers, and
toolbar controls.

Compatibility

• Latest v3 supports Nuxt ^4.1.0 and @nuxt/content >=3.5.0 <4.0.0.
• v2.2.3 remains available for Nuxt 3 and declares ^3.20.1 || ^4.1.0.

[github-actions]

We've flagged this as a potential contribution without a human behind it. We welcome the thoughtful use of AI tools when contributing, but ask all contributors to follow two core principles:

1. Never let an LLM speak for you - all comments, issues, and PR descriptions should be written in your own words, reflecting your own understanding.
2. Never let an LLM think for you - only submit contributions you fully understand and can explain.

Please review these AI-assisted contribution guidelines and update this contribution if needed.

If this was flagged in error, we apologise! 😳 Just let us know. 🙏

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 975ea470-10b3-49c1-9dd2-1e9c0b62a3b1

📥 Commits

Reviewing files that changed from the base of the PR and between 165a4a4 and 235cec3.

⛔ Files ignored due to path filters (1)

• icons/nuxt-content-mermaid.svg is excluded by !**/*.svg

📒 Files selected for processing (1)

• modules/nuxt-content-mermaid.yml

Included review availability: Your plan provides up to 4 included reviews per hour; 3 remain after this review.

---

📝 Walkthrough

Walkthrough

Adds a module metadata file for nuxt-content-mermaid. The metadata includes package details, repository and website links, classification, maintainer, description, and Nuxt 3/Nuxt 4 compatibility constraints.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Merge Risk: ⚪ Minimal · up to 235ce

This PR adds a localized module registry entry and icon, with no actionable merge-blocking risk remaining after normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	The metadata fulfills issue [#1580] by listing the module, repository, npm package, capabilities, and Nuxt 3 and Nuxt 4 compatibility.
Out of Scope Changes check	✅ Passed	The pull request contains only the module metadata required to add nuxt-content-mermaid to the registry.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)
Title check	✅ Passed	The title clearly identifies the main change: adding nuxt-content-mermaid to the Nuxt modules registry.
Description check	✅ Passed	The description explains the registry addition, module capabilities, and Nuxt compatibility.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[andy820621]

the autofix ci job's full-registry pnpm sync currently fails on the existing windicss entry because windicss/nuxt-windicss was archived on August 20.
The new nuxt-content-mermaid entry passes targeted sync locally, and all other checks pass.