fix websocket service exit on invalid handshake (#7448)

core/websockets/resources/classes/websocket_exception.php

@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * FusionPBX
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is FusionPBX
+ *
+ * The Initial Developer of the Original Code is
+ * Mark J Crane <markjcrane@fusionpbx.com>
+ * Portions created by the Initial Developer are Copyright (C) 2008-2025
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Mark J Crane <markjcrane@fusionpbx.com>
+ * Tim Fry <tim@fusionpbx.com>
+ */
+
+/**
+ * Description of websocket_exception
+ *
+ * @author Tim Fry <tim@fusionpbx.com>
+ */
+class websocket_exception extends \Exception {
+	public function __construct(string $message = "Websocket exception has occurred", int $code = 500, ?\Throwable $previous = null) {
+		return parent::__construct($message, $code, $previous);
+	}
+}