refactor: Remove legacy roi_get_option() calls from Inc/ files

- Clean Inc/adsense-delay.php
- Clean Inc/category-badge.php
- Clean Inc/enqueue-scripts.php
- Clean Inc/featured-image.php
- Clean Inc/social-share.php
- Clean sidebar.php - use roi_render_component('table-of-contents')
- Add roi_get_component_setting() helper to functions-addon.php

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

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

functions-addon.php

@@ -26,6 +26,52 @@ spl_autoload_register(function ($class) {
     }
 });
 
+// =============================================================================
+// HELPER FUNCTION: roi_get_component_setting() - GENÉRICA
+// =============================================================================
+
+/**
+ * Obtiene un valor de configuración de cualquier componente desde la BD
+ *
+ * Reemplaza a roi_get_option() legacy - lee de wp_roi_theme_component_settings
+ *
+ * @param string $component Nombre del componente (ej: 'featured-image', 'navbar')
+ * @param string $group Nombre del grupo (ej: 'visibility', 'content')
+ * @param string $attribute Nombre del atributo (ej: 'is_enabled', 'show_on_pages')
+ * @param mixed $default Valor por defecto si no existe
+ * @return mixed Valor del atributo
+ */
+function roi_get_component_setting(string $component, string $group, string $attribute, $default = null) {
+    global $wpdb;
+
+    $table = $wpdb->prefix . 'roi_theme_component_settings';
+    $value = $wpdb->get_var($wpdb->prepare(
+        "SELECT attribute_value FROM {$table}
+         WHERE component_name = %s
+         AND group_name = %s
+         AND attribute_name = %s",
+        $component,
+        $group,
+        $attribute
+    ));
+
+    if ($value === null) {
+        return $default;
+    }
+
+    // Convertir booleanos
+    if ($value === '1') return true;
+    if ($value === '0') return false;
+
+    // Intentar decodificar JSON
+    $decoded = json_decode($value, true);
+    if (json_last_error() === JSON_ERROR_NONE && is_array($decoded)) {
+        return $decoded;
+    }
+
+    return $value;
+}
+
 // =============================================================================
 // HELPER FUNCTION: roi_get_navbar_setting()
 // =============================================================================