Docker startup: поддержка legacy DJANGO_SETTINGS_MODULE config.settings.*

- Нормализация config.settings.* -> settings.* во всех entrypoint-скриптах

- Устраняет ModuleNotFoundError: No module named 'config' при старте в Dokploy

docker/scripts/start-celery-beat.sh

@@ -3,6 +3,18 @@ set -eu
 
 export DJANGO_SETTINGS_MODULE="${DJANGO_SETTINGS_MODULE:-settings.production}"
 
+case "${DJANGO_SETTINGS_MODULE}" in
+  config.settings.development|config.settings.dev)
+    export DJANGO_SETTINGS_MODULE="settings.dev"
+    ;;
+  config.settings.production)
+    export DJANGO_SETTINGS_MODULE="settings.production"
+    ;;
+  config.settings.test)
+    export DJANGO_SETTINGS_MODULE="settings.test"
+    ;;
+esac
+
 exec celery -A core beat \
   --loglevel="${CELERY_LOG_LEVEL:-INFO}" \
   --scheduler django_celery_beat.schedulers:DatabaseScheduler