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/alternativas-odoo-sh-2026/index.html

@@ -1123,7 +1123,7 @@
                         <li>SSL included</li>
                         <li>Staging environment</li>
                     </ul>
-                    <a href="https://odoo4projects.com" class="cta-btn" target="_blank" rel="noopener sponsored">Try Free 14 Days</a>
+                    <a href="https://odoo4projects.com?utm_source=odoo-expertos.com" class="cta-btn" target="_blank" rel="noopener sponsored">Try Free 14 Days</a>
                 </div>
 
                 <div style="padding: 1.5rem;">
@@ -1358,7 +1358,7 @@
         <section class="cta-banner fade-in">
             <h3>Ready to Save with Your Odoo Hosting?</h3>
             <p>Odoo4projects ofrece la Best Odoo.sh alternative for Odoo Community. Usuarios Unlimited, Integrated AI y 24/7 Spanish support desde solo 29EUR/month. Free Migration incluida.</p>
-            <a href="https://odoo4projects.com" class="cta-btn" target="_blank" rel="noopener sponsored">Request Free Migration</a>
+            <a href="https://odoo4projects.com?utm_source=odoo-expertos.com" class="cta-btn" target="_blank" rel="noopener sponsored">Request Free Migration</a>
         </section>
 
         <!-- FAQ Section -->