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/phpdocumentor/reflection/tests/integration/MetadataTest.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace phpDocumentor\Reflection;
+
+use phpDocumentor\Reflection\File\LocalFile;
+use phpDocumentor\Reflection\Metadata\HookStrategy;
+use phpDocumentor\Reflection\Php\Project;
+use phpDocumentor\Reflection\Php\ProjectFactory;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @coversNothing
+ */
+final class MetadataTest extends TestCase
+{
+    const FILE = __DIR__ . '/Metadata/example.php';
+
+    public function testCustomMetadata(): void
+    {
+        $projectFactory = ProjectFactory::createInstance();
+        $projectFactory->addStrategy(new HookStrategy());
+
+        /** @var Project $project */
+        $project = $projectFactory->create('My project', [new LocalFile(self::FILE)]);
+        $class = $project->getFiles()[self::FILE]->getClasses()['\myHookUsingClass'];
+
+        self::assertArrayHasKey('project-metadata', $class->getMethods()['\myHookUsingClass::test()']->getMetadata());
+    }
+}