Add Ask AI docs assistant with RAG on Netlify

[Dhirenderchoudhary]

• Please check if the PR fulfills these requirements

• The commit message follows our guidelines

• feature

• What this PR does / why we need it:
  Adds an Ask AI assistant to the Volcano website so users can ask natural-language questions and get answers grounded in the official documentation (RAG), with source links back to the docs. This lowers the learning curve for new contributors and makes docs easier to discover without manually searching many pages.

Implementation:

• Build-time docs index from docs/ for retrieval
• Netlify Function POST /api/ask-ai (RAG + Netlify AI Gateway)
• Floating Ask AI chat widget + navbar entry, with suggested questions and doc source links

• Which issue(s) this PR fixes:
  Fixes [Feature]: Add an “Ask AI” Assistant to the Volcano Website #558

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[volcano-sh-bot]

Welcome @Dhirenderchoudhary! It looks like this is your first PR to volcano-sh/website 🎉

[gemini-code-assist]

Caution

The consumer version of Gemini Code Assist on GitHub has been sunset. All code review activity has officially ceased.

[yashisrani]

@Dhirenderchoudhary Could you please attach a demo video so I can verify that it’s working as expected?

[Dhirenderchoudhary]

@yashisrani Yes for sure

[Dhirenderchoudhary]

@yashisrani If any changes are required please let me know

Screen.Recording.2026-08-02.at.4.38.19.PM.1.mov