feat(poc): Add in current PoC to the repo that will be used by Vercel

Dockerfile

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+FROM python:3.11.9-slim
+
+COPY requirements.txt /requirements.txt
+COPY be_poc /be_poc
+
+RUN python -m pip install -r /requirements.txt
+WORKDIR /be_poc
+RUN python manage.py migrate && \
+    python manage.py loaddata dummy_accounts
+
+ENTRYPOINT ["python", "manage.py", "runserver", "0.0.0.0:8000"]