ursa cli crashes hard when APIconnection error occurs

[isaacmichaud]

If you don't have the URSA_LLM_BASE_URL and URSA_LLM_MODEL env variables set correctly, the URSA cli crashes pretty hard without a good error message. This could probably be handle more elegantly.

[isaacmichaud]

Actually was an SSL certificate issue. Still, the error dump is huge and hard to find what the issue really was.