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/LazyProxy/PhpDumper/DumperInterface.php

@@ -0,0 +1,42 @@
+<?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\LazyProxy\PhpDumper;
+
+use Symfony\Component\DependencyInjection\Definition;
+
+/**
+ * Lazy proxy dumper capable of generating the instantiation logic PHP code for proxied services.
+ *
+ * @author Marco Pivetta <ocramius@gmail.com>
+ */
+interface DumperInterface
+{
+    /**
+     * Inspects whether the given definitions should produce proxy instantiation logic in the dumped container.
+     *
+     * @param bool|null   &$asGhostObject Set to true after the call if the proxy is a ghost object
+     * @param string|null $id
+     */
+    public function isProxyCandidate(Definition $definition/* , ?bool &$asGhostObject = null, ?string $id = null */): bool;
+
+    /**
+     * Generates the code to be used to instantiate a proxy in the dumped factory code.
+     */
+    public function getProxyFactoryCode(Definition $definition, string $id, string $factoryCode): string;
+
+    /**
+     * Generates the code for the lazy proxy.
+     *
+     * @param string|null $id
+     */
+    public function getProxyCode(Definition $definition/* , ?string $id = null */): string;
+}