Fase 1: Estructura Base y DI Container - Clean Architecture

COMPLETADO: Fase 1 de la migración a Clean Architecture + POO

## Estructura de Carpetas
- ✓ Estructura completa de 4 capas (Domain, Application, Infrastructure, Presentation)
- ✓ Carpetas de Use Cases (SaveComponent, GetComponent, DeleteComponent, SyncSchema)
- ✓ Estructura de tests (Unit, Integration, E2E)
- ✓ Carpetas de schemas y templates

## Composer y Autoloading
- ✓ PSR-4 autoloading configurado para ROITheme namespace
- ✓ Autoloader optimizado regenerado

## DI Container
- ✓ DIContainer implementado con patrón Singleton
- ✓ Métodos set(), get(), has() para gestión de servicios
- ✓ Getters específicos para ComponentRepository, ValidationService, CacheService
- ✓ Placeholders que serán implementados en Fase 5
- ✓ Prevención de clonación y deserialización

## Interfaces
- ✓ ComponentRepositoryInterface (Domain)
- ✓ ValidationServiceInterface (Application)
- ✓ CacheServiceInterface (Application)
- ✓ Component entity placeholder (Domain)

## Bootstrap
- ✓ functions.php actualizado con carga de Composer autoloader
- ✓ Inicialización del DIContainer
- ✓ Helper function roi_container() disponible globalmente

## Tests
- ✓ 10 tests unitarios para DIContainer (100% cobertura)
- ✓ Total: 13 tests unitarios, 28 assertions
- ✓ Suite de tests pasando correctamente

## Validación
- ✓ Script de validación automatizado (48/48 checks pasados)
- ✓ 100% de validaciones exitosas

La arquitectura base está lista para la Fase 2.

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

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

style.css

@@ -1,18 +1,18 @@
 /*
-Theme Name: Apus Theme
+Theme Name: ROI Theme
 Theme URI: https://analisisdepreciosunitarios.com
-Author: Apus Development Team
+Author: ROI Development Team
 Author URI: https://analisisdepreciosunitarios.com
-Description: Tema clásico de WordPress altamente optimizado para Core Web Vitals y SEO. Sin jQuery, sin bloat, máxima performance.
+Description: High-performance WordPress theme engineered for maximum ROI. Optimized for Core Web Vitals, SEO excellence, and conversion rate optimization. Zero bloat, maximum results.
 Version: 1.0.0
 Requires at least: 6.0
 Tested up to: 6.4
 Requires PHP: 8.0
 License: GNU General Public License v2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
-Text Domain: apus-theme
+Text Domain: roi-theme
 Domain Path: /languages
-Tags: blog, custom-menu, featured-images, footer-widgets, performance, accessibility-ready, translation-ready
+Tags: blog, custom-menu, featured-images, footer-widgets, performance, seo, conversion, roi, accessibility-ready, translation-ready
 */
 
 /*