Initial commit: OMSORG website + Mitarbeiter-App

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

mitarbeiter-app/actions/logout.php

@@ -0,0 +1,11 @@
+<?php
+require_once __DIR__ . '/../lib/auth.php';
+$_SESSION = [];
+if (ini_get('session.use_cookies')) {
+    $p = session_get_cookie_params();
+    setcookie(session_name(), '', time() - 42000,
+        $p['path'], $p['domain'], $p['secure'], $p['httponly']);
+}
+session_destroy();
+header('Location: ../index.php');
+exit;