Dockerfile

# Stage 1: Build frontend
FROM node:18-alpine AS frontend-build
WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ ./
RUN npm run build

# Stage 2: Python backend
FROM python:3.11-slim
WORKDIR /app

# Install backend deps
COPY backend/requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend
COPY backend/ ./backend/

# Copy built frontend
COPY --from=frontend-build /app/frontend/dist ./frontend/dist

# Expose port for Hugging Face
EXPOSE 7860

# Start server
CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "7860"]