Feat: Highlight cards with important labels

Signed-off-by: Kostiantyn Miakshyn <molodchick@gmail.com>

lib/Migration/Version20000Date20250907000000.php

@@ -0,0 +1,32 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+declare(strict_types=1);
+
+namespace OCA\Deck\Migration;
+
+use Closure;
+use OCP\DB\ISchemaWrapper;
+use OCP\DB\Types;
+use OCP\Migration\IOutput;
+use OCP\Migration\SimpleMigrationStep;
+
+class Version20000Date20250907000000 extends SimpleMigrationStep {
+	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
+		/** @var ISchemaWrapper $schema */
+		$schema = $schemaClosure();
+
+		$table = $schema->getTable('deck_labels');
+		if (!$table->hasColumn('custom_settings')) {
+			$table->addColumn('custom_settings', Types::JSON, [
+				'notnull' => false,
+			]);
+		}
+
+		return $schema;
+	}
+}