perf(fonts): Self-host Poppins fonts

- Add WOFF2 font files for Poppins (400, 500, 600, 700 weights)
- Create @font-face declarations in css-global-fonts.css
- Remove Google Fonts dependency from enqueue-scripts.php
- Remove preconnect hints for fonts.googleapis.com from seo.php

Benefits:
- Eliminates 36.2 kB external transfer from Google Fonts
- Improves GDPR compliance (no Google tracking)
- Reduces render-blocking requests
- Faster font loading from local server

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

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

inc/enqueue-scripts.php

@@ -13,23 +13,20 @@ if (!defined('ABSPATH')) {
 
 /**
  * Enqueue typography system
+ *
+ * SELF-HOSTED: Fuentes Poppins ahora se cargan desde Assets/fonts/
+ * Eliminada dependencia de Google Fonts para:
+ * - Mejorar rendimiento (sin requests externos)
+ * - Cumplimiento GDPR (sin tracking de Google)
+ * - Evitar bloqueo de renderizado
  */
 function roi_enqueue_fonts() {
-    // Google Fonts - Poppins (según documentación INTRODUCCION.md)
-    wp_enqueue_style(
-        'google-fonts-poppins',
-        'https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap',
-        array(),
-        null,
-        'all'
-    );
-
-    // Fonts CSS local
+    // Fonts CSS local con @font-face para Poppins self-hosted
     wp_enqueue_style(
         'roi-fonts',
         get_template_directory_uri() . '/Assets/css/css-global-fonts.css',
-        array('google-fonts-poppins'),
-        '1.0.0',
+        array(),
+        '1.1.0', // Bump version: self-hosted fonts
         'all'
     );
 }