refactor. pre-deploy

backend/entrypoint.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+echo "Collecting static files..."
+python3 manage.py collectstatic --noinput --clear
+
+echo "Applying database migrations..."
+python3 manage.py migrate --noinput
+
+echo "Starting server..."
+exec gunicorn backend.wsgi:application --bind 0.0.0.0:8000