Commit inicial - WordPress Análisis de Precios Unitarios

- WordPress core y plugins
- Tema Twenty Twenty-Four configurado
- Plugin allow-unfiltered-html.php simplificado
- .gitignore configurado para excluir wp-config.php y uploads

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

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

wp-admin/options-head.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * WordPress Options Header.
+ *
+ * Displays updated message, if updated variable is part of the URL query.
+ *
+ * @package WordPress
+ * @subpackage Administration
+ */
+
+// Don't load directly.
+if ( ! defined( 'ABSPATH' ) ) {
+	die( '-1' );
+}
+
+$action = ! empty( $_REQUEST['action'] ) ? sanitize_text_field( $_REQUEST['action'] ) : '';
+
+if ( isset( $_GET['updated'] ) && isset( $_GET['page'] ) ) {
+	// For back-compat with plugins that don't use the Settings API and just set updated=1 in the redirect.
+	add_settings_error( 'general', 'settings_updated', __( 'Settings saved.' ), 'success' );
+}
+
+settings_errors();