lots of improvements

shared/lib/Mail/Entity/EntityMutableInterface.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\Mail\Entity;
+
+use KTXF\Mail\Object\MessagePropertiesMutableInterface;
+use KTXF\Resource\Provider\Node\NodeMutableInterface;
+
+/**
+ * @method static setProperties(MessagePropertiesMutableInterface $value)
+ */
+interface EntityMutableInterface extends EntityBaseInterface, NodeMutableInterface {
+
+    public const JSON_TYPE = EntityBaseInterface::JSON_TYPE;
+
+    /**
+     * Gets the entity properties (mutable)
+     * 
+     * @since 2025.05.01
+     */
+    public function getProperties(): MessagePropertiesMutableInterface;
+
+}