first push

backend/Dockerfile

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+FROM python:3.13.13
+
+WORKDIR /workspace
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir \
+    --trusted-host pypi.org \
+    --trusted-host pypi.python.org \
+    --trusted-host files.pythonhosted.org \
+    -r requirements.txt
+
+COPY . .
+
+RUN chmod +x start.sh
+
+EXPOSE 8000
+EXPOSE 8001
+
+CMD ["./start.sh"]