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/odoo-hosting-germany-2026/index.html

@@ -1388,7 +1388,7 @@
         <section class="cta-banner fade-in">
             <h3>Ready to Deploy Odoo in Germany?</h3>
             <p>Odoo4projects offers managed Odoo hosting with German data center options from 29 EUR/month. GDPR compliant, 24/7 support, and 60-day money-back guarantee.</p>
-            <a href="https://odoo4projects.com" class="cta-btn" target="_blank" rel="noopener sponsored">Start Free 14-Day Trial</a>
+            <a href="https://odoo4projects.com?utm_source=odoo-expertos.com" class="cta-btn" target="_blank" rel="noopener sponsored">Start Free 14-Day Trial</a>
         </section>
 
         <!-- FAQ Section -->