fix(structure): Correct case-sensitivity for Linux compatibility

Rename folders to match PHP PSR-4 autoloading conventions:
- schemas → Schemas
- shared → Shared
- Wordpress → WordPress (in all locations)

Fixes deployment issues on Linux servers where filesystem is case-sensitive.

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

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

Shared/Infrastructure/Api/WordPress/AjaxController.php

@@ -0,0 +1,215 @@
+<?php
+declare(strict_types=1);
+
+namespace ROITheme\Shared\Infrastructure\Api\Wordpress;
+
+use ROITheme\Shared\Application\UseCases\SaveComponent\SaveComponentUseCase;
+use ROITheme\Shared\Application\UseCases\SaveComponent\SaveComponentRequest;
+use ROITheme\Shared\Application\UseCases\GetComponent\GetComponentUseCase;
+use ROITheme\Shared\Application\UseCases\GetComponent\GetComponentRequest;
+use ROITheme\Shared\Application\UseCases\DeleteComponent\DeleteComponentUseCase;
+use ROITheme\Shared\Application\UseCases\DeleteComponent\DeleteComponentRequest;
+use ROITheme\Shared\Infrastructure\Di\DIContainer;
+
+/**
+ * AjaxController - Endpoints AJAX de WordPress
+ *
+ * RESPONSABILIDAD: Manejar HTTP (request/response)
+ *
+ * PRINCIPIOS:
+ * - Single Responsibility: Solo maneja HTTP, delega lógica a Use Cases
+ * - Dependency Inversion: Depende de Use Cases (Application)
+ *
+ * SEGURIDAD:
+ * - Verifica nonce
+ * - Verifica capabilities (manage_options)
+ * - Sanitiza inputs
+ *
+ * @package ROITheme\Infrastructure\Api\WordPress
+ */
+final class AjaxController
+{
+    private const NONCE_ACTION = 'roi_theme_admin_nonce';
+
+    public function __construct(
+        private DIContainer $container
+    ) {}
+
+    /**
+     * Registrar hooks de WordPress
+     */
+    public function register(): void
+    {
+        add_action('wp_ajax_roi_theme_save_component', [$this, 'saveComponent']);
+        add_action('wp_ajax_roi_theme_get_component', [$this, 'getComponent']);
+        add_action('wp_ajax_roi_theme_delete_component', [$this, 'deleteComponent']);
+        add_action('wp_ajax_roi_theme_sync_schema', [$this, 'syncSchema']);
+    }
+
+    /**
+     * Endpoint: Guardar componente
+     *
+     * POST /wp-admin/admin-ajax.php?action=roi_theme_save_component
+     * Body: { nonce, component_name, data }
+     *
+     * @return void (usa wp_send_json_*)
+     */
+    public function saveComponent(): void
+    {
+        // 1. Seguridad
+        if (!$this->verifySecurity()) {
+            wp_send_json_error([
+                'message' => 'Security check failed'
+            ], 403);
+            return;
+        }
+
+        // 2. Sanitizar input
+        $componentName = sanitize_key($_POST['component_name'] ?? '');
+        $data = $_POST['data'] ?? [];
+
+        if (empty($componentName)) {
+            wp_send_json_error([
+                'message' => 'Component name is required'
+            ], 400);
+            return;
+        }
+
+        // 3. Crear Request DTO
+        $request = new SaveComponentRequest($componentName, $data);
+
+        // 4. Ejecutar Use Case
+        $useCase = new SaveComponentUseCase(
+            $this->container->getComponentRepository(),
+            $this->container->getValidationService(),
+            $this->container->getCacheService()
+        );
+
+        $response = $useCase->execute($request);
+
+        // 5. Respuesta HTTP
+        if ($response->isSuccess()) {
+            wp_send_json_success($response->getData());
+        } else {
+            wp_send_json_error([
+                'message' => 'Validation failed',
+                'errors' => $response->getErrors()
+            ], 422);
+        }
+    }
+
+    /**
+     * Endpoint: Obtener componente
+     *
+     * GET /wp-admin/admin-ajax.php?action=roi_theme_get_component&component_name=xxx
+     */
+    public function getComponent(): void
+    {
+        if (!$this->verifySecurity()) {
+            wp_send_json_error(['message' => 'Security check failed'], 403);
+            return;
+        }
+
+        $componentName = sanitize_key($_GET['component_name'] ?? '');
+
+        if (empty($componentName)) {
+            wp_send_json_error(['message' => 'Component name is required'], 400);
+            return;
+        }
+
+        $request = new GetComponentRequest($componentName);
+
+        $useCase = new GetComponentUseCase(
+            $this->container->getComponentRepository(),
+            $this->container->getCacheService()
+        );
+
+        $response = $useCase->execute($request);
+
+        if ($response->isSuccess()) {
+            wp_send_json_success($response->getData());
+        } else {
+            wp_send_json_error(['message' => $response->getError()], 404);
+        }
+    }
+
+    /**
+     * Endpoint: Eliminar componente
+     *
+     * POST /wp-admin/admin-ajax.php?action=roi_theme_delete_component
+     * Body: { nonce, component_name }
+     */
+    public function deleteComponent(): void
+    {
+        if (!$this->verifySecurity()) {
+            wp_send_json_error(['message' => 'Security check failed'], 403);
+            return;
+        }
+
+        $componentName = sanitize_key($_POST['component_name'] ?? '');
+
+        if (empty($componentName)) {
+            wp_send_json_error(['message' => 'Component name is required'], 400);
+            return;
+        }
+
+        $request = new DeleteComponentRequest($componentName);
+
+        $useCase = new DeleteComponentUseCase(
+            $this->container->getComponentRepository(),
+            $this->container->getCacheService()
+        );
+
+        $response = $useCase->execute($request);
+
+        if ($response->isSuccess()) {
+            wp_send_json_success(['message' => $response->getMessage()]);
+        } else {
+            wp_send_json_error(['message' => $response->getError()], 404);
+        }
+    }
+
+    /**
+     * Endpoint: Sincronizar schemas
+     *
+     * POST /wp-admin/admin-ajax.php?action=roi_theme_sync_schema
+     */
+    public function syncSchema(): void
+    {
+        if (!$this->verifySecurity()) {
+            wp_send_json_error(['message' => 'Security check failed'], 403);
+            return;
+        }
+
+        $syncService = $this->container->getSchemaSyncService();
+        $result = $syncService->syncAll();
+
+        if ($result['success']) {
+            wp_send_json_success($result['data']);
+        } else {
+            wp_send_json_error(['message' => $result['error']], 500);
+        }
+    }
+
+    /**
+     * Verificar seguridad (nonce + capabilities)
+     *
+     * @return bool
+     */
+    private function verifySecurity(): bool
+    {
+        // Verificar nonce
+        $nonce = $_REQUEST['nonce'] ?? '';
+
+        if (!wp_verify_nonce($nonce, self::NONCE_ACTION)) {
+            return false;
+        }
+
+        // Verificar permisos (solo administradores)
+        if (!current_user_can('manage_options')) {
+            return false;
+        }
+
+        return true;
+    }
+}