Feat: Auth for Claude / Gemini

[kitkat14]

I saw that someone opened a Merge request for ChatGPT. I think the agent can get allot of traction just by adding the standard auth clients or if that’s too much work make it work through the local CLI of the providers.

[S-Foxx]

I'm not alone then, I created a pull request to add auth for claude subscription LLM, it already has the ability for claude api but I'd rather not pay separately for tokens that are covered under my sub. You can view the PR here: #59 @kitkat14

I did not see this particular request for Auth for Claude / Gemini when I created the commit. I just really like claude so I built for that.