fix: Case-sensitivity en namespaces Wordpress -> WordPress

PROBLEMA:
- El modal de contacto no se mostraba en producción (Linux)
- Funcionaba en local (Windows) porque filesystem es case-insensitive
- Carpeta: `WordPress` (con P mayúscula)
- Namespaces: `Wordpress` (con p minúscula)

SOLUCION:
- Corregir todos los namespaces de `Wordpress` a `WordPress`
- También corregir paths incorrectos `ROITheme\Component\...` a `ROITheme\Shared\...`

ARCHIVOS CORREGIDOS (14):
- functions.php
- Admin/Infrastructure/Api/WordPress/AdminMenuRegistrar.php
- Admin/Shared/Infrastructure/Api/WordPress/AdminAjaxHandler.php
- Public/ContactForm/Infrastructure/Api/WordPress/ContactFormAjaxHandler.php
- Public/Footer/Infrastructure/Api/WordPress/NewsletterAjaxHandler.php
- Shared/Infrastructure/Api/WordPress/AjaxController.php
- Shared/Infrastructure/Api/WordPress/MigrationCommand.php
- Shared/Infrastructure/Di/DIContainer.php
- Shared/Infrastructure/Persistence/WordPress/WordPressComponentRepository.php
- Shared/Infrastructure/Persistence/WordPress/WordPressComponentSettingsRepository.php
- Shared/Infrastructure/Persistence/WordPress/WordPressDefaultsRepository.php
- Shared/Infrastructure/Services/CleanupService.php
- Shared/Infrastructure/Services/SchemaSyncService.php
- Shared/Infrastructure/Services/WordPressValidationService.php

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

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

Shared/Infrastructure/Api/WordPress/MigrationCommand.php

@@ -1,7 +1,7 @@
 <?php
 declare(strict_types=1);
 
-namespace ROITheme\Shared\Infrastructure\Api\Wordpress;
+namespace ROITheme\Shared\Infrastructure\Api\WordPress;
 
 /**
  * WP-CLI Command para Sincronización de Schemas