add prod and dev compose

.build/prod/api.Dockerfile

@@ -0,0 +1,25 @@
+FROM python:3.12-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+# netcat is used by entrypoint.sh to wait for postgres
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends netcat-openbsd \
+ && rm -rf /var/lib/apt/lists/*
+
+COPY backend/requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY backend/ .
+
+# Build the WhiteNoise manifest (staticfiles/staticfiles.json) so /static/ works.
+RUN python manage.py collectstatic --noinput
+
+COPY .build/prod/entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["gunicorn", "apibase.wsgi:application", "--bind", "0.0.0.0:5000", "--workers", "4"]