v0.05: fix Roundcube autologin + hamburger menu focus

Roundcube autologin fix:
- Added missing session->regenerate_id(false) and session->set_auth_cookie()
  calls after login, matching Roundcube's normal login flow in index.php.
  Without these, the roundcube_sessauth cookie was never set, causing every
  second request to fail with 'session is invalid or expired'.

Hamburger menu fix:
- Added activateWindow() + raise_() + processEvents() before menu.exec_()
  to ensure the toolbar window is active before the QMenu event loop starts.
  Without this, WA_ShowWithoutActivating prevents focus from being grabbed
  and the menu vanishes immediately.
- Added try/except to surface any silent errors.

roundcube-plugins/autologin/autologin.php

@@ -0,0 +1,44 @@
+<?php
+/**
+ * Kiosk Auto-Login Plugin
+ * Automatically logs in — senior user never sees the login screen.
+ * Mirrors the exact session setup from index.php's normal login flow:
+ *   login() -> session->remove('temp') -> session->regenerate_id(false)
+ *   -> session->set_auth_cookie() -> redirect
+ */
+class autologin extends rcube_plugin
+{
+    public $task = 'login';
+
+    function init()
+    {
+        $this->add_hook('startup', array($this, 'startup'));
+    }
+
+    function startup($args)
+    {
+        $rcmail = rcmail::get_instance();
+
+        if ($args['task'] == 'login' && empty($_SESSION['user_id'])) {
+            $username = 'rudbelik@gmail.com';
+            $password = 'zrhencfwzvgbqqfs';
+            $host     = 'ssl://imap.gmail.com:993';
+
+            $loggedin = $rcmail->login($username, $password, $host, false);
+
+            rcube::write_log('autologin', 'Login attempt ��� result: ' . ($loggedin ? 'SUCCESS' : 'FAILED'));
+
+            if ($loggedin) {
+                // Replicate exact post-login session setup from index.php
+                $rcmail->session->remove('temp');
+                $rcmail->session->regenerate_id(false);
+                $rcmail->session->set_auth_cookie();
+
+                header('Location: ' . $rcmail->url(array('_task' => 'mail')));
+                exit;
+            }
+        }
+
+        return $args;
+    }
+}