Initial V2 setup

v2/backend/docker/Dockerfile

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+FROM python:3.13.7-slim-bookworm
+
+WORKDIR /app
+
+# Copy requirements and install Python dependencies
+COPY ./requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the app code and tests
+COPY ../src ./src
+
+CMD ["python", "src/main.py"]