Draft: Resolve "reintroduce/update Sentry tracing (and update deps)"
Closes #26 (closed) and
- ensures all the tracing-related env variables are propagated through ansible and docker compose
- ensures LLM api/keys are specific, still keeping the OPENAI_* fallback for now (TBD we should keep the fallback settings to most capable model)
- fixes somehow missing mkdocs dependency (it would break the build)