docs: add healthcare & mental wellness security considerations

[Where-Mental-Wellness-Meets-Metaverse]

Summary

• Adds docs/regulated-domains/healthcare-security.md.
• Fixes markdownlint MD022/MD032 and spelling.
• Disables MD013 in this file for readability and long reference lines.

Local checks

• markdownlint: clean vs upstream/main
• codespell: clean

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[Where-Mental-Wellness-Meets-Metaverse]

All CI checks are now ✅ green:

• Lint: clean
• Spelling: clean (ignore list added for project-specific terms)
• DCO: all commits signed off
• Netlify: deploy preview ready

This PR is ready for review and approval by maintainers. 🚀

[JustinCappos]

Thanks for the PR. I totally agree with the sentiment, but I wonder if this is the right place for this information. Maybe a portion of this that is more cloud-native streamlined (and less blockchain) could appear in the security assessment book?

[Where-Mental-Wellness-Meets-Metaverse]

Thanks, Justin. I’ll streamline this PR so it’s focused on the cloud-native/security-relevant points. I’ll also prepare a separate contribution to the Security Assessment book with the blockchain-specific material so it has the right home. Updating shortly. On Monday, September 1, 2025 at 09:47:13 AM EDT, Justin Cappos ***@***.***> wrote: JustinCappos left a comment (cncf/tag-security#1491) Thanks for the PR. I totally agree with the sentiment, but I wonder if this is the right place for this information. Maybe a portion of this that is more cloud-native streamlined (and less blockchain) could appear in the security assessment book? — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[Where-Mental-Wellness-Meets-Metaverse]

I’ve streamlined the PR so it stays focused on cloud-native security concerns.

[Where-Mental-Wellness-Meets-Metaverse]

Thanks, Justin — I’ve streamlined the PR to focus on cloud-native security concerns.