feat: caching, optimization, legal pages & footer

- WP Super Cache enabled (PHP mode, gzip, Nginx compatible)
- Autoptimize: CSS/HTML minification + deferred JS + Google Fonts optimization
- Cookie Notice: GDPR/LOPD banner styled with brand colors (navy/burgundy/gold)
- Legal pages: Aviso Legal, Política de Privacidad, Política de Cookies (ES)
- MU-plugin: custom footer with legal links + Cloud Host credit
- Footer: copyright, legal nav, Hosted & Maintained by Cloud Host (cloudhost.es)
- Security: X-Frame-Options, X-Content-Type, Referrer-Policy headers
- Security: XML-RPC disabled, REST user enumeration blocked
- Performance: emoji scripts removed, post revisions limited to 3

wp-content/plugins/cookie-notice/includes/modules/wp-optimize/wp-optimize.php

@@ -0,0 +1,54 @@
+<?php
+// exit if accessed directly
+if ( ! defined( 'ABSPATH' ) )
+	exit;
+
+/**
+ * Cookie Notice Modules WP-Optimize class.
+ *
+ * Compatibility since: 3.0.12
+ *
+ * @class Cookie_Notice_Modules_WPOptimize
+ */
+class Cookie_Notice_Modules_WPOptimize {
+
+	/**
+	 * Constructor.
+	 *
+	 * @return void
+	 */
+	public function __construct() {
+		// has to be executed on plugins_loaded with priority 0
+		$this->load_module();
+	}
+
+	/**
+	 * Add compatibility to WP-Optimize plugin.
+	 *
+	 * @return void
+	 */
+	public function load_module() {
+		// get wp-optimize configuration
+		if ( class_exists( 'WPO_Cache_Config' ) ) {
+			$options = WPO_Cache_Config::instance()->get();
+
+			// is caching enabled?
+			if ( ! empty( $options['enable_page_caching'] ) )
+				add_filter( 'wpo_purge_cache_hooks', [ $this, 'add_purge_cache' ] );
+		}
+	}
+
+	/**
+	 * Add action when cache is purged.
+	 *
+	 * @param array $actions
+	 * @return array
+	 */
+	public function add_purge_cache( $actions ) {
+		$actions[] = 'cn_configuration_updated';
+
+		return $actions;
+	}
+}
+
+new Cookie_Notice_Modules_WPOptimize();