FROM python:3.12-slim

WORKDIR /app
ENV PYTHONUNBUFFERED=1 PIP_NO_CACHE_DIR=1

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Run as a non-root user (HF recommends uid 1000). data/ must stay writable: the pick
# panels and the risk screen cache there (ephemeral — a restart just recomputes).
RUN useradd -m -u 1000 app
COPY --chown=app:app . .
USER app

# HF Spaces serve on 7860
EXPOSE 7860
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]