Feature: add kapa.ai service to the site

[leborchuk]

https://www.kapa.ai/ is a good service for working with unstructure data.

It could be great to use it for work with our documentation on site.

Clickhouse already uses it. Here how it happens - https://www.kapa.ai/blog/driving-users-to-mcp

[github-actions]

Hey, @leborchuk welcome!🎊 Thanks for taking the time to point this out.🙌

[tuhaihe]

Hi @leborchuk, yes, it's a great idea! Actually, we applied for a free account with Apache Cloudberry on Kapa.AI. I sent you an invitation.

I would like to integrate Kapa.ai with our website in the next few days. I believe it's not easy to do that.