refactor(kernel): unify HTTP and CLI application lifecycle

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

core/lib/Application/KernelOptions.php

@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KTXC\Application;
+
+final readonly class KernelOptions
+{
+    public function __construct(
+        public ProjectPaths $paths,
+        public string $environment = 'prod',
+        public bool $debug = false,
+    ) {
+        if ($this->environment === '') {
+            throw new \InvalidArgumentException('Kernel environment cannot be empty.');
+        }
+    }
+}