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/ProjectNamespaceTest.php

@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * This file is part of phpDocumentor.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @link http://phpdoc.org
+ */
+
+namespace phpDocumentor\Reflection;
+
+use phpDocumentor\Reflection\File\LocalFile;
+use phpDocumentor\Reflection\Php\ProjectFactory;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Integration tests to check the correct working of processing a namespace into a project.
+ *
+ * @coversNothing
+ */
+class ProjectNamespaceTest extends TestCase
+{
+    /**
+     * @var ProjectFactory
+     */
+    private $fixture;
+
+    protected function setUp() : void
+    {
+        $this->fixture = $this->fixture = ProjectFactory::createInstance();
+    }
+
+    public function testWithNamespacedClass() : void
+    {
+        $fileName = __DIR__ . '/data/Luigi/Pizza.php';
+        $project = $this->fixture->create(
+            'My Project',
+            [ new LocalFile($fileName) ]
+        );
+
+        $this->assertArrayHasKey($fileName, $project->getFiles());
+        $this->assertArrayHasKey('\\Luigi', $project->getNamespaces());
+        $this->assertEquals(
+            ['\\Luigi\\Pizza' => new Fqsen('\\Luigi\\Pizza')],
+            $project->getNamespaces()['\\Luigi']->getClasses()
+        );
+    }
+
+    public function testWithNamespacedConstant() : void
+    {
+        $fileName = __DIR__ . '/data/Luigi/constants.php';
+        $project = $this->fixture->create(
+            'My Project',
+            [ new LocalFile($fileName) ]
+        );
+
+        $this->assertArrayHasKey($fileName, $project->getFiles());
+        $this->assertArrayHasKey('\\Luigi', $project->getNamespaces());
+        $this->assertEquals(
+            [
+                '\\Luigi\\OVEN_TEMPERATURE' => new Fqsen('\\Luigi\\OVEN_TEMPERATURE'),
+                '\\Luigi\\MAX_OVEN_TEMPERATURE' => new Fqsen('\\Luigi\\MAX_OVEN_TEMPERATURE'),
+                ],
+            $project->getNamespaces()['\\Luigi']->getConstants()
+        );
+    }
+}