refactor: Cleanup git state - commit all staged changes

Major refactoring cleanup:
- Add new controller architecture (class-controller-*.php)
- Add new settings-v2 UI (views/settings-v2/)
- Add new CSS architecture (agentic-sidebar.css, tokens)
- Add esbuild build pipeline (scripts/build.js, package.json)
- Add composer dependencies (vendor/)
- Add frontend src directory (assets/js/src/index.jsx)
- Add documentation files
- Remove old/obsolete files (class-settings.php, old CSS)

This commits all pending changes from previous refactoring efforts.

vendor/symfony/cache/Traits/RedisCluster61ProxyTrait.php

@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+if (version_compare(phpversion('redis'), '6.1.0-dev', '>')) {
+    /**
+     * @internal
+     */
+    trait RedisCluster61ProxyTrait
+    {
+        public function getex($key, $options = []): \RedisCluster|string|false
+        {
+            return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->getex(...\func_get_args());
+        }
+
+        public function publish($channel, $message): \RedisCluster|bool|int
+        {
+            return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->publish(...\func_get_args());
+        }
+
+        public function waitaof($key_or_address, $numlocal, $numreplicas, $timeout): \RedisCluster|array|false
+        {
+            return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->waitaof(...\func_get_args());
+        }
+    }
+} else {
+    /**
+     * @internal
+     */
+    trait RedisCluster61ProxyTrait
+    {
+        public function publish($channel, $message): \RedisCluster|bool
+        {
+            return ($this->lazyObjectState->realInstance ??= ($this->lazyObjectState->initializer)())->publish(...\func_get_args());
+        }
+    }
+}