lots of improvements

shared/lib/Mail/Collection/CollectionBaseInterface.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace KTXF\Mail\Collection;
+
+use KTXF\Resource\Provider\Node\NodeBaseInterface;
+
+/**
+ * Mail Collection Base Interface
+ * 
+ * Interface represents a mailbox/folder in a mail service
+ * 
+ * @since 2025.05.01
+ */
+interface CollectionBaseInterface extends NodeBaseInterface {
+
+    /**
+     * Gets the collection properties
+     * 
+     * @since 2025.05.01
+     */
+    public function getProperties(): CollectionPropertiesBaseInterface|CollectionPropertiesMutableInterface;
+
+}