Main BDI brain structure implemented. Still some TODOs left, and very basic implementation (only one belief "user_said(Message)" and every message is sent straight to a function which is responsible for getting an LLM response. ref: N25B-197
Added some example basic files containing a functioning /message endpoint which logs the received message to INFO. ref: N25B-144
Also added the initial packages necessary for audio transcription. ref: N25B-144
