Problem

The repository contains 9 README files with 50+ links (internal and external) that need comprehensive validation to ensure:

• All internal relative paths resolve correctly
• External URLs are accessible (no 404s)
• Microsoft URLs don't contain language-specific paths (/en-us/)
• Frontmatter is valid across all files

Files to Audit

Known Issues

Critical

• .vscode/README.md - Missing YAML frontmatter with title: field (has code fence header instead)

Validation Required

• All internal ../ relative paths resolve correctly
• External GitHub URLs are accessible
• External Microsoft URLs don't contain /en-us/ language paths
• All external documentation links are accessible

Validation Process

1. Run existing link validation: npm run lint:md-links
2. Run language path check: npm run lint:link-lang
3. Manual verification of relative path resolution
4. Fix .vscode/README.md frontmatter

Acceptance Criteria

• All internal links verified working
• All external links return 200 status
• No Microsoft URLs contain language-specific paths
• .vscode/README.md has valid YAML frontmatter
• CI link validation passes