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Dockerfile

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+FROM python:3.11-slim
+
+WORKDIR /app
+
+ENV PYTHONUNBUFFERED=1 \
+    TZ=Asia/Shanghai
+
+RUN apt-get update && apt-get install -y --no-install-recommends tzdata \
+    && ln -snf /usr/share/zoneinfo/$TZ /etc/localtime \
+    && echo $TZ > /etc/timezone \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY backend/requirements.txt /app/backend/requirements.txt
+RUN pip install --no-cache-dir -r /app/backend/requirements.txt
+
+COPY . /app
+
+RUN mkdir -p /app/data
+
+EXPOSE 8000
+
+CMD ["python", "run.py"]