Create Dockerfile

Dockerfile

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+FROM python:3.11-slim AS backend
+WORKDIR /app
+COPY backend/requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY backend/ .
+COPY data/ /data
+
+FROM node:18-alpine AS frontend-build
+WORKDIR /app/frontend
+COPY frontend/package*.json ./
+RUN npm ci
+COPY frontend/ .
+RUN npm run build
+
+FROM python:3.11-slim
+WORKDIR /app
+COPY --from=backend /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
+COPY --from=backend /app /app
+COPY --from=frontend-build /app/frontend/build /app/static
+
+RUN apt-get update && apt-get install -y git nodejs npm curl && rm -rf /var/lib/apt/lists/*
+# Allow sandbox command execution
+RUN mkdir /sandbox && chmod 777 /sandbox
+
+ENV PYTHONUNBUFFERED=1
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]