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/docs/getting-started.rst

@@ -0,0 +1,49 @@
+Getting started
+===============
+
+This page will give you a quick introduction to the `phpdocumentor/reflection` package and how to get started with it.
+
+Installation
+------------
+
+In order to inspect a codebase you need to tell composer to include the `phpdocumentor/reflection` package. This
+can easily be done using the following command in your command line terminal:
+
+.. code-block:: bash
+
+    composer require phpdocumentor/reflection:~6.0
+
+In order to use the library you need to include the autoloader of composer in your code.
+ This can be done by adding the following line to your code:
+
+.. code-block:: php
+
+    <?php
+    require_once 'vendor/autoload.php';
+
+After the installation is complete no further configuration is necessary and you can immediately start using it.
+
+Basic usage
+------------
+
+The :php:class:`\phpDocumentor\Reflection\Php\ProjectFactory` class is the entry point to the library and is used to create a new
+project object that contains all the information about your codebase. It is configured with sensible defaults. And for most
+usecases you can just use it as is.
+
+.. code-block:: php
+
+    $projectFactory = \phpDocumentor\Reflection\Php\ProjectFactory::createInstance();
+
+At this point we are ready to analyze your complete project or just one file at the time. Just pass an array of file paths to the `create` method of the project factory.
+
+.. code-block:: php
+
+    $projectFiles = [new \phpDocumentor\Reflection\File\LocalFile('tests/example.file.php')];
+    $project = $projectFactory->create('My Project', $projectFiles);
+
+When the process is ready a new object of type :php:class:`phpDocumentor\Reflection\Php\Project` will be returned that
+contains a complete hierarchy of all files with their classes, traits and interfaces (and everything in there), but also
+all namespaces and packages as a hierarchical tree.
+This library does not provide a way to access the structure of the codebase in a searchable way.
+This is up to the consumer of the library to implement.
+