0 ? library_fetch_document($documentId, $publicOnly) : null;
if (!$document || empty($document['file_path'])) {
http_response_code(404);
die('Document not found or no file attached.');
}
$fileUrl = library_file_url((string) $document['file_path']);
?>
<?= h($document['title_en'] ?: 'Document Viewer') ?> - Reader