feat: add RAG page and update navbar with RAG link

[necatiozmen]

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• Related issue(s) linked
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What is the current behavior?

What is the new behavior?

fixes (issue)

Notes for reviewers

---

Summary by cubic

Added a dedicated RAG page at /voltops/rag and added RAG to the navbar to improve discoverability and onboarding for Retrieval Augmented Generation in VoltOps.

• New Features
  • RAG landing page with hero and feature highlights (upload docs, single-line retriever, automatic chunking).
  • SEO and social meta tags for better sharing.
  • Navbar links to RAG in both sidebar and top navigation with a CircleStack icon.

^{Written for commit 1e63bf7. Summary will update automatically on new commits.}

[changeset-bot]

⚠️ No Changeset found

Latest commit: 1e63bf7

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[cubic-dev-ai]

No issues found across 2 files