fix(infra) : fix public dir permissions in deploy.sh

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

infra/prod/deploy.sh

@@ -23,6 +23,7 @@ sleep 3
 echo "==> Extracting maintenance page..."
 mkdir -p public
 sudo docker compose cp app:/var/www/html/public/maintenance.html public/maintenance.html
+sudo chown -R www-data:www-data public
 
 echo "==> Running migrations..."
 sudo docker compose exec -T -u www-data app php bin/console doctrine:migrations:migrate --no-interaction