feat(website): make LLM-friendly

[Danilqa]

Note

Low Risk
Docs-site-only changes (metadata, build plugin, and dependency bumps) with no runtime impact on the library itself; main risk is CI/build breakage if the new plugin config or updated toolchain behaves differently.

Overview
Makes the docs site more LLM-friendly by adding frontmatter description metadata to key docs pages and configuring docusaurus-plugin-llms to generate llms.txt, a full variant, and markdown exports in a specific docs order.

Updates the website toolchain/dependencies to support this (adds docusaurus-plugin-llms, adds feed, and bumps clsx, @docusaurus/module-type-aliases, @tsconfig/docusaurus, and typescript), with corresponding lockfile updates.

^{Written by Cursor Bugbot for commit 1caadb5. This will update automatically on new commits. Configure here.}

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
node-file-router	Ready	Preview, Comment	Feb 14, 2026 9:38am

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{Bugbot Autofix is OFF. To automatically fix reported issues with Cloud Agents, enable Autofix in the Cursor dashboard.}

[cursor]

Unnecessary feed dependency added to production dependencies

Low Severity

The feed package was added as a direct production dependency, but it's never imported or used anywhere in the website source code. It's already available as a transitive dependency of @docusaurus/plugin-content-blog. This addition appears unrelated to the LLM-friendly feature and was likely committed accidentally during dependency updates.