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

fr/odoo-hosting/hosting-odoo-propio-selfhosted-2026/index.html

@@ -1861,7 +1861,7 @@ aws s3 sync $BACKUP_DIR s3://tu-bucket-backups/odoo/ --delete
         <section class="cta-banner fade-in">
             <h3>Prefiere Evitar la Complejidad del Self-Hosting?</h3>
             <p>Odoo4projects ofrece hosting gestionado desde 29 euros/mes con backups automaticos, SSL incluido, soporte en espanol 24/7 y sin limites de usuarios. Enfocate en tu negocio, no en administrar servidores.</p>
-            <a href="https://odoo4projects.com" class="cta-btn" target="_blank" rel="noopener sponsored">Probar Gratis 14 Dias</a>
+            <a href="https://odoo4projects.com?utm_source=odoo-expertos.com" class="cta-btn" target="_blank" rel="noopener sponsored">Probar Gratis 14 Dias</a>
         </section>
 
         <!-- FAQ Section -->