refactor(kernel): unify HTTP and CLI application lifecycle

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

tests/php/Unit/Application/ProjectPathsTest.php

@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace KTXT\Unit\Application;
+
+use KTXC\Application\KernelOptions;
+use KTXC\Application\ProjectPaths;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\Attributes\TestDox;
+use PHPUnit\Framework\TestCase;
+
+final class ProjectPathsTest extends TestCase
+{
+    #[Test]
+    #[TestDox('Project roots resolve identically from nested entrypoints')]
+    public function resolves(): void
+    {
+        $root = dirname(__DIR__, 4);
+        $fromRoot = ProjectPaths::resolve($root);
+        $fromCore = ProjectPaths::resolve($root . '/core/lib/index.php');
+        $fromConsole = ProjectPaths::resolve($root . '/bin/console');
+
+        self::assertSame($fromRoot->project, $fromCore->project);
+        self::assertSame($fromRoot->project, $fromConsole->project);
+        self::assertSame($fromRoot->modules(), $fromCore->modules());
+        self::assertSame($fromRoot->logs(), $fromConsole->logs());
+    }
+
+    #[Test]
+    #[TestDox('Missing project roots are rejected')]
+    public function rejectsMissingRoots(): void
+    {
+        $this->expectException(\InvalidArgumentException::class);
+        ProjectPaths::resolve(sys_get_temp_dir());
+    }
+
+    #[Test]
+    #[TestDox('Empty kernel environments are rejected')]
+    public function rejectsEmptyEnvironments(): void
+    {
+        $this->expectException(\InvalidArgumentException::class);
+        new KernelOptions(ProjectPaths::resolve(dirname(__DIR__, 4)), '');
+    }
+}