Drops the duplicate standalone compose / .env.example / SETUP.md at the repo root. Bring-up content folded into deployments/ai-stack/README.md so there's exactly one set of deployment instructions, sitting next to the files it describes. Root README is now just the repo overview and a pointer at the deployment. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>