refactor: Kern ohne Divi – Ports BuilderDetector, MediaUsageSource, EnvironmentComponent und ausgeschlossene Post-Typen im ContentSchema; Divi-Implementierungen und Verdrahtung über DiviIntegration/Plugin; CoreIndependenceTest

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tests/Unit/Integrations/Divi/DiviBuilderDetectorTest.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Tests\Unit\Integrations\Divi;
+
+use Brain\Monkey\Functions;
+use LIT\MCP\Integrations\Divi\DiviBuilderDetector;
+use LIT\MCP\Integrations\WordPress\BuilderDetector;
+use LIT\MCP\Tests\Unit\TestCase;
+
+final class DiviBuilderDetectorTest extends TestCase
+{
+    public function testIsABuilderDetectorThatFollowsDiviFiveBeingLoaded(): void
+    {
+        $detector = new DiviBuilderDetector();
+
+        self::assertInstanceOf(BuilderDetector::class, $detector);
+        self::assertFalse($detector->isAvailable(), 'no Divi classes in unit tests');
+    }
+
+    public function testALayoutIsMarkedByDivisBuilderFlag(): void
+    {
+        Functions\when('get_post_meta')->alias(
+            static fn (int $postId, string $key): string => $postId === 7 && $key === '_et_pb_use_builder' ? 'on' : ''
+        );
+        $detector = new DiviBuilderDetector();
+
+        self::assertTrue($detector->usesBuilder(7));
+        self::assertFalse($detector->usesBuilder(8));
+    }
+}