refactor: Divi catalog adapter with manifest

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

tests/Unit/Integrations/WordPress/Schema/ContentSchemaTest.php

@@ -117,4 +117,18 @@ final class ContentSchemaTest extends TestCase
 
         self::assertSame(['logo', 'photo'], (new ContentSchema([$source]))->mediaFieldKeys());
     }
+
+    /** Spec §3: Divi's post types come from the Katalog adapter – the list itself stays the same. */
+    public function testExcludedPostTypesStayTheSame(): void
+    {
+        self::assertSame(
+            [
+                'attachment', 'nav_menu_item', 'revision', 'wp_block', 'wp_template', 'wp_template_part',
+                'wp_navigation', 'wp_global_styles', 'wp_font_family', 'wp_font_face', 'et_pb_layout',
+                'et_theme_builder', 'et_template', 'et_header_layout', 'et_body_layout', 'et_footer_layout',
+                'et_pb_canvas', '_et_pb_speculation',
+            ],
+            ContentSchema::EXCLUDED
+        );
+    }
 }