Fix create/edit pages missing vars; add storage:link entrypoint

- AutoController create/edit: add purposeCases, dillers
- EstateController create/edit: add purposeCases, districts, dillers
- Add entrypoint.sh to run storage:link on container start

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

_docker/app/entrypoint.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+set -e
+
+cd /var/www
+
+# Create storage:link if not exists
+if [ ! -L /var/www/public/storage ]; then
+    php artisan storage:link --force
+fi
+
+# Cache config
+php artisan config:cache --no-ansi 2>/dev/null || true
+
+exec php-fpm