refactor(compat): Prüfbausteine nach src/Compatibility, Matrix und ManifestCheck generisch

Requirement, Call, ConstantRequirement, Mirror, Problem, FeatureStatus, CompatibilityMatrix, Manifest, ManifestCheck sowie Fingerprints und LineDiff liegen jetzt im divi-freien Kern. Neu: GlobalRequirement, CompatibilityMatrix::fromProblems(), ManifestCheck-Option signatures, DiviManifestCheck::create() und DiviAreas. Divi-Verhalten unverändert.

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

tests/Unit/Integrations/Divi/Release/DiviAreasTest.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Tests\Unit\Integrations\Divi\Release;
+
+use LIT\MCP\Integrations\Divi\Release\DiviAreas;
+use PHPUnit\Framework\TestCase;
+
+final class DiviAreasTest extends TestCase
+{
+    public function testTheFiveAreasAreNamedAsInSpecSection3(): void
+    {
+        self::assertSame('Seiten', DiviAreas::PAGES);
+        self::assertSame('Bibliothek', DiviAreas::LIBRARY);
+        self::assertSame('Theme Builder', DiviAreas::THEME_BUILDER);
+        self::assertSame('Designsystem', DiviAreas::DESIGN);
+        self::assertSame('Katalog', DiviAreas::CATALOG);
+    }
+}