Docker Compose for self-hosted deployment

[adaamko]

Summary

Add a docker-compose.yml (plus any required Dockerfiles) so contributors and users can spin up the full stack — FastAPI backend + React frontend — with a single docker compose up.

Motivation

Right now local setup requires manually installing Python deps, starting the API, and starting the frontend separately. A Compose file removes friction for evaluators and self-hosters.

Scope

• Dockerfile for the FastAPI app (api/app.py)
• Dockerfile for the React frontend (frontend/)
• docker-compose.yml wiring both together, with OPENAI_API_KEY passed via environment
• Optional: mount a volume for the local Milvus DB so the index persists across restarts
• Update README.md with a one-liner start command

Notes

• The API listens on port 8000; the frontend proxies to it at that address
• The frontend is a standard CRA app (npm run build → static files)
• A CPU-only image is preferred (no CUDA requirement)