feat(docs): add custom lint rule to match frontmatter title with page title

[moshams272]

Summary

This PR creates a custom linting ESlint script that enforces matches between the frontmatter title and the Markdown H1 heading across all .md pages.

- Created scripts/lint/frontmatter-title.mjs that recursively parses markdown files using gray-matter.
- Added npm run lint:md:fix which updates the frontmatter title to match the H1 heading where a mismatch is detected, using lineWidth: -1 to avoid unwanted YAML line-wrapping on long strings like authors.

• Created eslint-local-rules/frontmatter-title.mjs that hooks into Markdown AST nodes (heading and root:exit).
• Added @eslint/markdown as a devDependency to empower ESLint to natively parse .md files without crashing on JS specific rules.
• Configured eslint.config.mjs to target pages/**/*.md and safely excludes all auto-generated content (e.g., pages/docs/api, pages/docs/loaders) and skips layout-only pages (e.g., 404.md).

Fixes #186

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Project	Deployment	Actions	Updated (UTC)
webpack-doc-kit	Ready	Preview, Comment	Jul 18, 2026 1:07pm