refactor: documents

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

shared/lib/Resource/Documents/Collection/CollectionPropertiesBaseInterface.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace KTXF\Resource\Documents\Collection;
+
+use KTXF\Resource\Provider\Node\NodePropertiesBaseInterface;
+
+interface CollectionPropertiesBaseInterface extends NodePropertiesBaseInterface {
+
+	public const JSON_TYPE = 'document:collection';
+	public const JSON_PROPERTY_CONTENTS = 'content';
+	public const JSON_PROPERTY_LABEL = 'label';
+
+	public function content(): CollectionContent;
+
+	/**
+	 * Gets the human friendly name of this collection (e.g. Personal Calendar)
+	 *
+	 * @since 2025.05.01
+	 */
+	public function getLabel(): string;
+
+}