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-docblock/composer.json

@@ -0,0 +1,57 @@
+{
+    "name": "phpdocumentor/reflection-docblock",
+    "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Mike van Riel",
+            "email": "me@mikevanriel.com"
+        },
+        {
+            "name": "Jaap van Otterdijk",
+            "email": "opensource@ijaap.nl"
+        }
+    ],
+    "require": {
+        "php": "^7.4 || ^8.0",
+        "phpdocumentor/type-resolver": "^1.7",
+        "webmozart/assert": "^1.9.1 || ^2",
+        "phpdocumentor/reflection-common": "^2.2",
+        "ext-filter": "*",
+        "phpstan/phpdoc-parser": "^1.7|^2.0",
+        "doctrine/deprecations": "^1.1"
+    },
+    "require-dev": {
+        "mockery/mockery": "~1.3.5 || ~1.6.0",
+        "phpunit/phpunit": "^9.5",
+        "phpstan/phpstan": "^1.8",
+        "phpstan/phpstan-mockery": "^1.1",
+        "phpstan/extension-installer": "^1.1",
+        "phpstan/phpstan-webmozart-assert": "^1.2",
+        "psalm/phar": "^5.26"
+    },
+    "autoload": {
+        "psr-4": {
+            "phpDocumentor\\Reflection\\": "src"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "phpDocumentor\\Reflection\\": ["tests/unit", "tests/integration"]
+        }
+    },
+    "config": {
+        "platform": {
+            "php":"7.4.0"
+        },
+        "allow-plugins": {
+            "phpstan/extension-installer": true
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "5.x-dev"
+        }
+    }
+}