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- backend/Dockerfile: multi-stage Python build (builder + slim runtime) - frontend/Dockerfile: multi-stage Node build + nginx:alpine serving - frontend/nginx.conf: SPA routing + /api/ reverse proxy to backend - docker-compose.yml: production compose with health checks and proper dependency ordering - docker-compose.dev.yml: dev overrides with hot reload via volume mounts Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>