Migración completa a Clean Architecture con componentes funcionales

- Reorganización de estructura: Admin/, Public/, Shared/, Schemas/
- 12 componentes migrados: TopNotificationBar, Navbar, CtaLetsTalk, Hero,
  FeaturedImage, TableOfContents, CtaBoxSidebar, SocialShare, CtaPost,
  RelatedPost, ContactForm, Footer
- Panel de administración con tabs Bootstrap 5 funcionales
- Schemas JSON para configuración de componentes
- Renderers dinámicos con CSSGeneratorService (cero CSS hardcodeado)
- FormBuilders para UI admin con Design System consistente
- Fix: Bootstrap JS cargado en header para tabs funcionales
- Fix: buildTextInput maneja valores mixed (bool/string)
- Eliminación de estructura legacy (src/, admin/, assets/css/componente-*)

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

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

TemplateParts/content-hero.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * Hero Section Template
+ *
+ * Hero section con degradado azul para single posts
+ *
+ * @package ROI_Theme
+ */
+
+if (!is_single()) {
+    return;
+}
+?>
+
+<section class="hero-section">
+    <div class="container-fluid py-5">
+        <div class="hero-content text-center">
+
+            <!-- Category Badges (ARRIBA del H1) -->
+            <?php
+            $categories = get_the_category();
+            if (!empty($categories)) :
+            ?>
+                <div class="hero-categories mb-3">
+                    <?php foreach ($categories as $category) : ?>
+                        <?php if ($category->name !== 'Uncategorized' && $category->name !== 'Sin categoría') : ?>
+                            <span class="hero-category-badge"><?php echo esc_html($category->name); ?></span>
+                        <?php endif; ?>
+                    <?php endforeach; ?>
+                </div>
+            <?php endif; ?>
+
+            <!-- H1 Title -->
+            <h1 class="hero-title"><?php the_title(); ?></h1>
+
+            <!-- Post Meta -->
+            <div class="hero-meta">
+                <span class="hero-meta-item">
+                    <i class="bi bi-calendar3 me-1"></i>
+                    <?php echo get_the_date(); ?>
+                </span>
+                <span class="hero-meta-separator">|</span>
+                <span class="hero-meta-item">
+                    <i class="bi bi-person me-1"></i>
+                    <?php the_author(); ?>
+                </span>
+                <?php
+                $reading_time = roi_get_reading_time();
+                if ($reading_time) :
+                ?>
+                    <span class="hero-meta-separator">|</span>
+                    <span class="hero-meta-item">
+                        <i class="bi bi-clock me-1"></i>
+                        <?php echo esc_html($reading_time); ?>
+                    </span>
+                <?php endif; ?>
+            </div>
+
+        </div>
+    </div>
+</section>