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-common/composer.json

@@ -0,0 +1,28 @@
+{
+    "name": "phpdocumentor/reflection-common",
+    "keywords": ["phpdoc", "phpDocumentor", "reflection", "static analysis", "FQSEN"],
+    "homepage": "http://www.phpdoc.org",
+    "description": "Common reflection classes used by phpdocumentor to reflect the code structure",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Jaap van Otterdijk",
+            "email": "opensource@ijaap.nl"
+        }
+    ],
+    "require": {
+        "php": "^7.2 || ^8.0"
+    },
+    "autoload" : {
+      "psr-4" : {
+        "phpDocumentor\\Reflection\\": "src/"
+      }
+    },
+    "require-dev": {
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-2.x": "2.x-dev"
+        }
+    }
+}