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/console/Exception/CommandNotFoundException.php

@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Exception;
+
+/**
+ * Represents an incorrect command name typed in the console.
+ *
+ * @author Jérôme Tamarelle <jerome@tamarelle.net>
+ */
+class CommandNotFoundException extends \InvalidArgumentException implements ExceptionInterface
+{
+    private array $alternatives;
+
+    /**
+     * @param string          $message      Exception message to throw
+     * @param string[]        $alternatives List of similar defined names
+     * @param int             $code         Exception code
+     * @param \Throwable|null $previous     Previous exception used for the exception chaining
+     */
+    public function __construct(string $message, array $alternatives = [], int $code = 0, ?\Throwable $previous = null)
+    {
+        parent::__construct($message, $code, $previous);
+
+        $this->alternatives = $alternatives;
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getAlternatives(): array
+    {
+        return $this->alternatives;
+    }
+}

vendor/symfony/console/Exception/ExceptionInterface.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Exception;
+
+/**
+ * ExceptionInterface.
+ *
+ * @author Jérôme Tamarelle <jerome@tamarelle.net>
+ */
+interface ExceptionInterface extends \Throwable
+{
+}

vendor/symfony/console/Exception/InvalidArgumentException.php

@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Exception;
+
+/**
+ * @author Jérôme Tamarelle <jerome@tamarelle.net>
+ */
+class InvalidArgumentException extends \InvalidArgumentException implements ExceptionInterface
+{
+}

vendor/symfony/console/Exception/InvalidOptionException.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Exception;
+
+/**
+ * Represents an incorrect option name or value typed in the console.
+ *
+ * @author Jérôme Tamarelle <jerome@tamarelle.net>
+ */
+class InvalidOptionException extends \InvalidArgumentException implements ExceptionInterface
+{
+}

vendor/symfony/console/Exception/LogicException.php

@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Exception;
+
+/**
+ * @author Jérôme Tamarelle <jerome@tamarelle.net>
+ */
+class LogicException extends \LogicException implements ExceptionInterface
+{
+}

vendor/symfony/console/Exception/MissingInputException.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Exception;
+
+/**
+ * Represents failure to read input from stdin.
+ *
+ * @author Gabriel Ostrolucký <gabriel.ostrolucky@gmail.com>
+ */
+class MissingInputException extends RuntimeException implements ExceptionInterface
+{
+}

vendor/symfony/console/Exception/NamespaceNotFoundException.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Exception;
+
+/**
+ * Represents an incorrect namespace typed in the console.
+ *
+ * @author Pierre du Plessis <pdples@gmail.com>
+ */
+class NamespaceNotFoundException extends CommandNotFoundException
+{
+}

vendor/symfony/console/Exception/RunCommandFailedException.php

@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Exception;
+
+use Symfony\Component\Console\Messenger\RunCommandContext;
+
+/**
+ * @author Kevin Bond <kevinbond@gmail.com>
+ */
+final class RunCommandFailedException extends RuntimeException
+{
+    public function __construct(\Throwable|string $exception, public readonly RunCommandContext $context)
+    {
+        parent::__construct(
+            $exception instanceof \Throwable ? $exception->getMessage() : $exception,
+            $exception instanceof \Throwable && \is_int($exception->getCode()) ? $exception->getCode() : 0,
+            $exception instanceof \Throwable ? $exception : null,
+        );
+    }
+}

vendor/symfony/console/Exception/RuntimeException.php

@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Exception;
+
+/**
+ * @author Jérôme Tamarelle <jerome@tamarelle.net>
+ */
+class RuntimeException extends \RuntimeException implements ExceptionInterface
+{
+}