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/routing/Matcher/Dumper/MatcherDumperInterface.php

@@ -0,0 +1,33 @@
+<?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\Routing\Matcher\Dumper;
+
+use Symfony\Component\Routing\RouteCollection;
+
+/**
+ * MatcherDumperInterface is the interface that all matcher dumper classes must implement.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface MatcherDumperInterface
+{
+    /**
+     * Dumps a set of routes to a string representation of executable code
+     * that can then be used to match a request against these routes.
+     */
+    public function dump(array $options = []): string;
+
+    /**
+     * Gets the routes to dump.
+     */
+    public function getRoutes(): RouteCollection;
+}