FROM python:3.11-slim

WORKDIR /app
ENV PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    PYTHONDONTWRITEBYTECODE=1

# 依赖
COPY backend/requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

# 代码 + 前端
COPY backend/app /app/app
COPY frontend /app/frontend

EXPOSE 8000
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]