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

ar/odoo-hosting/hosting-odoo-barato-2026/index.html

@@ -1204,7 +1204,7 @@
                             </ul>
                         </div>
                     </div>
-                    <a href="https://odoo4projects.com" class="cta-btn" target="_blank" rel="noopener sponsored">Probar 14 Dias Gratis -></a>
+                    <a href="https://odoo4projects.com?utm_source=odoo-expertos.com" class="cta-btn" target="_blank" rel="noopener sponsored">Probar 14 Dias Gratis -></a>
                 </div>
             </div>
         </section>
@@ -1318,7 +1318,7 @@
         <section class="cta-banner fade-in">
             <h3>La Opcion Inteligente: Hosting Gestionado a Precio de VPS</h3>
             <p>Odoo4projects ofrece hosting gestionado desde solo 29 EUR/mes. Incluye instalacion, actualizaciones, backups, soporte 24/7 en espanol y sin limite de usuarios. Ahorra tiempo y dolores de cabeza.</p>
-            <a href="https://odoo4projects.com" class="cta-btn" target="_blank" rel="noopener sponsored">Comenzar Prueba Gratuita de 14 Dias -></a>
+            <a href="https://odoo4projects.com?utm_source=odoo-expertos.com" class="cta-btn" target="_blank" rel="noopener sponsored">Comenzar Prueba Gratuita de 14 Dias -></a>
         </section>
 
         <!-- FAQ Section -->