Affiliate funnel: tag all odoo4projects.com links with utm_source=odoo-expertos.com

- 467 outbound links across 254 files now carry our affiliate UTM
  (replaces the stale utm_source=X5Y2I933 on the banner components)
- fix 36 links to /starter /professional /enterprise /business /mx,
  which return 404 on the target; remapped to /#pricing
- add a managed-hosting CTA block to all 6 homepages (es/en/de/fr/pt/ar),
  which previously carried zero links to the host

en/odoo-hosting/comparativa-precios-odoo-2026/index.html

@@ -1545,7 +1545,7 @@
         <section class="cta-banner fade-in">
             <h3>Ahorra Hasta un 70% en tu Odoo Hosting</h3>
             <p>Odoo4projects ofrece Hosting gestionado desde 29/month con todo incluido: backups, SSL, 24/7 Spanish support y sin limite de usuarios. Sin Costs Hidden, sin sorpresas.</p>
-            <a href="https://odoo4projects.com" class="cta-btn" target="_blank" rel="noopener sponsored">Calcular mi Ahorro</a>
+            <a href="https://odoo4projects.com?utm_source=odoo-expertos.com" class="cta-btn" target="_blank" rel="noopener sponsored">Calcular mi Ahorro</a>
         </section>
 
         <!-- FAQ Section -->