feat(visibility): sistema de visibilidad por tipo de página

- Añadir PageVisibility use case y repositorio
- Implementar PageTypeDetector para detectar home/single/page/archive
- Actualizar FieldMappers con soporte show_on_[page_type]
- Extender FormBuilders con UI de visibilidad por página
- Refactorizar Renderers para evaluar visibilidad dinámica
- Limpiar schemas removiendo campos de visibilidad legacy
- Añadir MigrationCommand para migrar configuraciones existentes
- Implementar adsense-loader.js para carga lazy de ads
- Actualizar front-page.php con nueva estructura
- Extender DIContainer con nuevos servicios

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Admin/RelatedPost/Infrastructure/FieldMapping/RelatedPostFieldMapper.php

@@ -29,7 +29,13 @@ final class RelatedPostFieldMapper implements FieldMapperInterface
             'relatedPostEnabled' => ['group' => 'visibility', 'attribute' => 'is_enabled'],
             'relatedPostShowOnDesktop' => ['group' => 'visibility', 'attribute' => 'show_on_desktop'],
             'relatedPostShowOnMobile' => ['group' => 'visibility', 'attribute' => 'show_on_mobile'],
-            'relatedPostShowOnPages' => ['group' => 'visibility', 'attribute' => 'show_on_pages'],
+
+            // Page Visibility (grupo especial _page_visibility)
+            'relatedPostVisibilityHome' => ['group' => '_page_visibility', 'attribute' => 'show_on_home'],
+            'relatedPostVisibilityPosts' => ['group' => '_page_visibility', 'attribute' => 'show_on_posts'],
+            'relatedPostVisibilityPages' => ['group' => '_page_visibility', 'attribute' => 'show_on_pages'],
+            'relatedPostVisibilityArchives' => ['group' => '_page_visibility', 'attribute' => 'show_on_archives'],
+            'relatedPostVisibilitySearch' => ['group' => '_page_visibility', 'attribute' => 'show_on_search'],
 
             // Content
             'relatedPostSectionTitle' => ['group' => 'content', 'attribute' => 'section_title'],