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-content/plugins/seo-by-rank-math/includes/admin/database/class-database.php

@@ -0,0 +1,41 @@
+<?php
+/**
+ * The Database.
+ *
+ * @since      1.0.0
+ * @package    RankMath
+ * @subpackage RankMath\Admin\Database
+ * @author     RankMath <support@rankmath.com>
+ */
+
+namespace RankMath\Admin\Database;
+
+/**
+ * Database class.
+ */
+class Database {
+
+	/**
+	 * Array of all databases objects.
+	 *
+	 * @var array
+	 */
+	protected static $instances = [];
+
+	/**
+	 * Retrieve a Database instance by table name.
+	 *
+	 * @param string $table_name A Database instance id.
+	 *
+	 * @return Database Database object instance.
+	 */
+	public static function table( $table_name ) {
+		global $wpdb;
+
+		if ( empty( self::$instances ) || empty( self::$instances[ $table_name ] ) ) {
+			self::$instances[ $table_name ] = new Query_Builder( $wpdb->prefix . $table_name );
+		}
+
+		return self::$instances[ $table_name ];
+	}
+}