[Web][Dovecot][SOGo][DockerApi] Add mailbox groups, shared mailboxes and identity provider sync

data/web/inc/lib/mailcow/Identity/Model/DirectoryGroup.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Mailcow\Identity\Model;
+
+/**
+ * A selected IdP group with the ids of its member users.
+ */
+class DirectoryGroup
+{
+    /**
+     * @param ?string $mail      group address in the IdP, decides the domain of an auto-created group
+     * @param string[] $memberIds ids of the member users (DirectoryUser::$id)
+     */
+    public function __construct(
+        public readonly string $id,
+        public readonly string $name,
+        public readonly ?string $mail = null,
+        public array $memberIds = []
+    ) {
+    }
+}