chore: Add orchestration agent docs

[tomfrenken]

What Has Changed?

This PR is a replication of @deekshas8, just swapping out the client.

I was also considering creating tabs on the original and just rewriting the docs accordingly, thoughts?

Then, we could restructure "getting started with agnets" into 3 categories; "simple, advanced, MCP agents" or so, where advanced also includes input output filtering (only done with orchestration) and MCP with some follow-up client we build or integrate.

[deekshas8]

@tomfrenken : Totally agree. Having 2 pages with same/similar content feels unnecessary. We can move the content to getting started with agents level and have tabs for each client as you suggested. I believe client initialization is the only difference. MCP and advanced orchestration can be a separate pages under tutorials.

[deekshas8]

I was also considering creating tabs on the original and just rewriting the docs accordingly, thoughts?

I created a PR for HITL #133, maybe we directly do it in that?

[tomfrenken]

@deekshas8 yes good idea, I'll review the HITL PR and then update this accordingly to create tabs instead.

[tomfrenken]

@deekshas8 I've change this PR to use tabs instead, should be a lot easier to maintain as well, and I think it doesn't interfere with your HITL PR for the most part.