python migration

server/dockerfile

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+FROM python:3.11-slim
+
+# Set working dir
+WORKDIR /app
+
+# Copy requirements first (for caching)
+COPY requirements.txt .
+
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy app code
+COPY . .
+
+# Expose Flask port
+EXPOSE 3001
+
+# Environment vars
+ENV PYTHONUNBUFFERED=1
+
+# Run app
+CMD ["python", "app.py"]