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/property-info/composer.json

@@ -0,0 +1,52 @@
+{
+    "name": "symfony/property-info",
+    "type": "library",
+    "description": "Extracts information about PHP class' properties using metadata of popular sources",
+    "keywords": [
+        "property",
+        "type",
+        "phpdoc",
+        "symfony",
+        "validator",
+        "doctrine"
+    ],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Kévin Dunglas",
+            "email": "dunglas@gmail.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": ">=8.2",
+        "symfony/deprecation-contracts": "^2.5|^3",
+        "symfony/string": "^6.4|^7.0|^8.0",
+        "symfony/type-info": "^7.4.7|^8.0.7"
+    },
+    "require-dev": {
+        "symfony/serializer": "^6.4|^7.0|^8.0",
+        "symfony/cache": "^6.4|^7.0|^8.0",
+        "symfony/dependency-injection": "^6.4|^7.0|^8.0",
+        "phpdocumentor/reflection-docblock": "^5.2|^6.0",
+        "phpstan/phpdoc-parser": "^1.0|^2.0"
+    },
+    "conflict": {
+        "phpdocumentor/reflection-docblock": "<5.2|>=7",
+        "phpdocumentor/type-resolver": "<1.5.1",
+        "symfony/dependency-injection": "<6.4",
+        "symfony/cache": "<6.4",
+        "symfony/serializer": "<6.4"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Component\\PropertyInfo\\": "" },
+        "exclude-from-classmap": [
+            "/Tests/"
+        ]
+    },
+    "minimum-stability": "dev"
+}