feat: initial version

Signed-off-by: Sebastian Krupinski <root@LAPTOP-7DVOR6NC>

lib/Service/Remote/Command/StartTlsCommand.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace KTXM\ProviderImapMail\Service\Remote\Command;
+
+use Gricob\IMAP\Protocol\Command\Command;
+
+/**
+ * STARTTLS command (RFC 3501 §6.2.1).
+ *
+ * Instructs the server to begin TLS negotiation on the current connection.
+ * After the server responds OK, the client must call upgradeTls() on the
+ * underlying SocketConnection to complete the handshake.
+ */
+final readonly class StartTlsCommand extends Command
+{
+    public function __construct()
+    {
+        parent::__construct('STARTTLS');
+    }
+}