feat: initial ACRIB WordPress deployment

- WordPress 6.9.4 (es_ES) with Kadence theme
- Homepage: Hero, La Asociación, Pilares, Beneficios, Eventos, Miembros, Hazte Miembro, Contacto
- Brand identity: #13294b navy, #a12932 burgundy, #c69c48 gold
- Fonts: Raleway (headings) + Source Sans 3 (body) + Lato (UI)
- Plugins: Kadence Blocks, Polylang, Contact Form 7
- Custom CSS with full brand styling and responsive layout
- HTTPS enforced via wp-config.php proxy detection

wp-includes/IXR/class-IXR-clientmulticall.php

@@ -0,0 +1,55 @@
+<?php
+/**
+ * IXR_ClientMulticall
+ *
+ * @package IXR
+ * @since 1.5.0
+ */
+class IXR_ClientMulticall extends IXR_Client
+{
+    var $calls = array();
+
+	/**
+	 * PHP5 constructor.
+	 */
+    function __construct( $server, $path = false, $port = 80 )
+    {
+        parent::IXR_Client($server, $path, $port);
+        $this->useragent = 'The Incutio XML-RPC PHP Library (multicall client)';
+    }
+
+	/**
+	 * PHP4 constructor.
+	 */
+	public function IXR_ClientMulticall( $server, $path = false, $port = 80 ) {
+		self::__construct( $server, $path, $port );
+	}
+
+	/**
+	 * @since 1.5.0
+	 * @since 5.5.0 Formalized the existing `...$args` parameter by adding it
+	 *              to the function signature.
+	 */
+    function addCall( ...$args )
+    {
+        $methodName = array_shift($args);
+        $struct = array(
+            'methodName' => $methodName,
+            'params' => $args
+        );
+        $this->calls[] = $struct;
+    }
+
+	/**
+	 * @since 1.5.0
+	 * @since 5.5.0 Formalized the existing `...$args` parameter by adding it
+	 *              to the function signature.
+	 *
+	 * @return bool
+	 */
+    function query( ...$args )
+    {
+        // Prepare multicall, then call the parent::query() method
+        return parent::query('system.multicall', $this->calls);
+    }
+}