[Feature] Make use of RAG models

[ynvtlmr]

There may be a significant advantage for the bot utility if it can use models powered with Retrieval Augmented Generation (RAG) specific to the project.
I envision this either as a settings file that maintains a list of relevant GitHub repos (your project's repo, repos of frameworks or libraries being used), or the ability to use a RAG model maintained on OpenAI's side.
Just a thought.