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/dependency-injection/Loader/Configurator/Traits/LazyTrait.php

@@ -0,0 +1,32 @@
+<?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\DependencyInjection\Loader\Configurator\Traits;
+
+trait LazyTrait
+{
+    /**
+     * Sets the lazy flag of this service.
+     *
+     * @param bool|string $lazy A FQCN to derivate the lazy proxy from or `true` to make it extend from the definition's class
+     *
+     * @return $this
+     */
+    final public function lazy(bool|string $lazy = true): static
+    {
+        $this->definition->setLazy((bool) $lazy);
+        if (\is_string($lazy)) {
+            $this->definition->addTag('proxy', ['interface' => $lazy]);
+        }
+
+        return $this;
+    }
+}