Backup pre-corrección namespaces: mejoras schemas y componentes

Cambios incluidos:
- Actualización de copy/textos en 7 schemas JSON
- Mejoras en AdminAjaxHandler con mapeos adicionales
- Refactorización de FormBuilders y Renderers
- Correcciones en dashboard admin JS
- Nuevo ContactFormRenderer funcional

NOTA: Este commit sirve como respaldo antes de corregir
inconsistencias de case en namespaces (API→Api, WordPress→Wordpress)

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

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

Admin/Infrastructure/Ui/Views/dashboard.php

@@ -13,7 +13,19 @@ if (!defined('ABSPATH')) {
 }
 
 $components = $this->getComponents();
-$firstComponentId = array_key_first($components);
+
+// Determinar tab activo: desde URL o primer componente
+$activeComponentId = array_key_first($components);
+
+// Leer parametro admin-tab de la URL con sanitizacion
+// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Solo lectura de parametro para UI
+if (isset($_GET['admin-tab'])) {
+    $requestedTab = sanitize_text_field(wp_unslash($_GET['admin-tab']));
+    // Validar que el componente exista
+    if (array_key_exists($requestedTab, $components)) {
+        $activeComponentId = $requestedTab;
+    }
+}
 ?>
 
 <div class="wrap roi-admin-panel">
@@ -21,13 +33,13 @@ $firstComponentId = array_key_first($components);
     <ul class="nav nav-tabs nav-tabs-admin mb-0" role="tablist">
         <?php foreach ($components as $componentId => $component): ?>
             <li class="nav-item" role="presentation">
-                <button class="nav-link <?php echo $componentId === $firstComponentId ? 'active' : ''; ?>"
+                <button class="nav-link <?php echo $componentId === $activeComponentId ? 'active' : ''; ?>"
                         data-bs-toggle="tab"
                         data-bs-target="#<?php echo esc_attr($componentId); ?>Tab"
                         type="button"
                         role="tab"
                         aria-controls="<?php echo esc_attr($componentId); ?>Tab"
-                        aria-selected="<?php echo $componentId === $firstComponentId ? 'true' : 'false'; ?>">
+                        aria-selected="<?php echo $componentId === $activeComponentId ? 'true' : 'false'; ?>">
                     <i class="bi <?php echo esc_attr($component['icon']); ?> me-1"></i>
                     <?php echo esc_html($component['label']); ?>
                 </button>
@@ -38,11 +50,11 @@ $firstComponentId = array_key_first($components);
     <!-- Tab Content -->
     <div class="tab-content mt-3">
         <?php foreach ($components as $componentId => $component):
-            $isFirst = ($componentId === $firstComponentId);
+            $isActive = ($componentId === $activeComponentId);
             $componentSettings = $this->getComponentSettings($componentId);
         ?>
             <!-- Tab: <?php echo esc_html($component['label']); ?> -->
-            <div class="tab-pane fade <?php echo $isFirst ? 'show active' : ''; ?>"
+            <div class="tab-pane fade <?php echo $isActive ? 'show active' : ''; ?>"
                  id="<?php echo esc_attr($componentId); ?>Tab"
                  role="tabpanel">