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/json-path/composer.json

@@ -0,0 +1,30 @@
+{
+    "name": "phpdocumentor/json-path",
+    "description": "Access php objects with json path expressions",
+    "type": "library",
+    "license": "MIT",
+    "autoload": {
+        "psr-4": {
+            "phpDocumentor\\JsonPath\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "phpDocumentor\\JsonPath\\": "tests/unit"
+        }
+    },
+    "authors": [
+        {
+            "name": "jaapio",
+            "email": "jaap@phpdoc.org"
+        }
+    ],
+    "require": {
+        "php": "8.1.*|8.2.*|8.3.*|8.4.*",
+        "parsica-php/parsica": "^0.8.3",
+        "symfony/property-access": "^5.4|^6.4|^7.1"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^10.5"
+    }
+}