Dockerfile

FROM python:3.11-slim

# System deps for opencv
RUN apt-get update && apt-get install -y --no-install-recommends \
    libgl1 \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user (HF Spaces runs as uid 1000)
RUN useradd -m -u 1000 user
WORKDIR /app

# Install Python deps first for better caching
COPY --chown=user requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir --upgrade pip \
    && pip install --no-cache-dir -r /app/requirements.txt \
    --extra-index-url https://download.pytorch.org/whl/cpu

# Copy app
COPY --chown=user . /app
USER user

ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]