Add Deploy to Railyard button

[almokhtarbr]

Adds a one-click "Deploy to Railyard" button next to your existing deploy links, for people who want to run this on their own server (DigitalOcean, Hetzner, Vultr, or any VPS over SSH) instead of a managed platform.

Docs: https://railyard.run/docs/deploy-button/

Just the one badge line — feel free to close if you would rather not carry it.

[github-actions]

👋 Welcome, @almokhtarbr, and thanks for opening your first PR on AnythingMCP!

A few quick pointers:

• Make sure CI is green before requesting review (Backend, Frontend, Playwright, CodeQL, Trivy).
• If this is a new adapter, the parametrised catalog.spec.ts test will validate it automatically.
• Sign off your commits if you can — it's not blocking, just nice to have.

Someone from the core team will look at this within ~48h. If you don't hear back, please ping us in Discussions / Q&A.

⭐ While you wait — if you find AnythingMCP useful, a star helps others discover it.

[github-actions]

Thank you for your submission, we really appreciate it. Like many open-source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution. You can sign the CLA by just posting a Pull Request Comment same as the below format.

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I have read the CLA Document and I hereby sign the CLA

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