feat(v4): add docker-compose and production-ready application

docker-compose.yml

@@ -28,7 +28,7 @@ services:
     build: ./backend
     command: sh -c "python manage.py migrate && python manage.py collectstatic --noinput && gunicorn enhancer_project.wsgi:application --bind 0.0.0.0:8000"
     env_file:
-      - ./backend/.env
+      - ${BACKEND_ENV_FILE:-./backend/.env}
     environment:
       DJANGO_DEBUG: ${DJANGO_DEBUG:-0}
       DJANGO_SECRET_KEY: ${DJANGO_SECRET_KEY:-change-me}
@@ -61,7 +61,7 @@ services:
     build: ./backend
     command: celery -A enhancer_project worker --loglevel=info
     env_file:
-      - ./backend/.env
+      - ${BACKEND_ENV_FILE:-./backend/.env}
     environment:
       DJANGO_DEBUG: ${DJANGO_DEBUG:-0}
       DJANGO_SECRET_KEY: ${DJANGO_SECRET_KEY:-change-me}