feat: add dev and prod deployment scaffolding

backend/entrypoint-web-prod.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+set -e
+
+exec gunicorn config.wsgi:application \
+  --bind 0.0.0.0:8000 \
+  --workers 3 \
+  --timeout 120 \
+  --access-logfile - \
+  --error-logfile -