Agregar estructura completa del tema APUS con Bootstrap 5 y optimizaciones de rendimiento

Se implementa tema WordPress personalizado para Análisis de Precios Unitarios con funcionalidades avanzadas:
- Sistema de templates (front-page, single, archive, page, 404, search)
- Integración de Bootstrap 5.3.8 con estructura modular de assets
- Panel de opciones del tema con Customizer API
- Optimizaciones de rendimiento (Critical CSS, Image Optimization, Performance)
- Funcionalidades SEO y compatibilidad con Rank Math
- Sistema de posts relacionados y tabla de contenidos
- Badge de categorías y manejo de AdSense diferido
- Tipografías Google Fonts configurables
- Documentación completa del tema y guías de uso

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

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

wp-content/themes/apus-theme/index.php

@@ -0,0 +1,103 @@
+<?php
+/**
+ * The main template file
+ *
+ * This is the most generic template file in a WordPress theme and one
+ * of the two required files for a theme (the other being style.css).
+ * It is used to display a page when nothing more specific matches a query.
+ * For example, it puts together the home page when no home.php file exists.
+ *
+ * @link https://developer.wordpress.org/themes/basics/template-hierarchy/
+ *
+ * @package Apus_Theme
+ * @since 1.0.0
+ */
+
+get_header();
+?>
+
+	<main id="main-content" class="site-main" role="main">
+
+		<div class="content-wrapper">
+
+			<!-- Primary Content Area -->
+			<div id="primary" class="content-area">
+
+				<?php
+				if ( have_posts() ) :
+
+					// Check if this is the blog home page
+					if ( is_home() && ! is_front_page() ) :
+						?>
+						<header class="page-header">
+							<h1 class="page-title screen-reader-text">
+								<?php single_post_title(); ?>
+							</h1>
+						</header>
+						<?php
+					endif;
+
+					// Start the WordPress Loop
+					while ( have_posts() ) :
+						the_post();
+
+						/**
+						 * Include the Post-Type-specific template for the content.
+						 * If you want to override this in a child theme, then include a file
+						 * called content-___.php (where ___ is the Post Type name) and that will be used instead.
+						 */
+						get_template_part( 'template-parts/content', get_post_type() );
+
+					endwhile;
+
+					/**
+					 * Pagination
+					 * Display navigation to next/previous set of posts when applicable.
+					 */
+					the_posts_pagination(
+						array(
+							'mid_size'  => 2,
+							'prev_text' => sprintf(
+								'%s <span class="nav-prev-text">%s</span>',
+								'<span class="nav-icon" aria-hidden="true">&laquo;</span>',
+								esc_html__( 'Previous', 'apus-theme' )
+							),
+							'next_text' => sprintf(
+								'<span class="nav-next-text">%s</span> %s',
+								esc_html__( 'Next', 'apus-theme' ),
+								'<span class="nav-icon" aria-hidden="true">&raquo;</span>'
+							),
+							'before_page_number' => '<span class="screen-reader-text">' . esc_html__( 'Page', 'apus-theme' ) . ' </span>',
+							'aria_label' => esc_attr__( 'Posts navigation', 'apus-theme' ),
+						)
+					);
+
+				else :
+
+					/**
+					 * No posts found
+					 * Display a message when no content is available.
+					 */
+					get_template_part( 'template-parts/content', 'none' );
+
+				endif;
+				?>
+
+			</div><!-- #primary -->
+
+			<?php
+			/**
+			 * Sidebar
+			 * Display the sidebar if it's active and we're not on a full-width page.
+			 */
+			if ( is_active_sidebar( 'sidebar-1' ) ) :
+				get_sidebar();
+			endif;
+			?>
+
+		</div><!-- .content-wrapper -->
+
+	</main><!-- #main-content -->
+
+<?php
+get_footer();