Add affiliate hosting CTA to the 6 language hosting-hub pages

The /<lang>/odoo-hosting/ hubs are the highest-intent pages ('hosting Odoo')
and carried no outbound link to the host before this change.

fr/odoo-hosting/index.html

@@ -462,6 +462,23 @@
             </div>
         </div>
     </section>
+    <!-- Affiliate hosting CTA -->
+    <section id="hosting-cta" style="padding:64px 20px;background:linear-gradient(135deg,#0f1720 0%,#1b2430 100%);">
+        <div style="max-width:1000px;margin:0 auto;background:rgba(255,255,255,0.03);border:1px solid rgba(255,107,53,0.35);border-radius:18px;padding:36px;display:flex;gap:32px;flex-wrap:wrap;align-items:center;justify-content:space-between;">
+            <div style="flex:1 1 420px;min-width:280px;">
+                <div style="color:#FF8A50;font-size:.78rem;letter-spacing:2px;font-weight:700;margin-bottom:10px;">HÉBERGEMENT ODOO GÉRÉ</div>
+                <h2 style="color:#fff;font-size:1.7rem;line-height:1.25;margin:0 0 12px;">Déployez Odoo en 5 minutes, sans DevOps</h2>
+                <p style="color:#c9d1d9;margin:0 0 16px;line-height:1.6;">Notre fournisseur recommandé installe votre instance Odoo Community en 5 minutes : sauvegardes automatiques, SSL gratuit, 6 régions et support IA. À partir de <strong>214 USD/an</strong>, essai gratuit de 30 jours sans carte bancaire.</p>
+                <ul style="list-style:none;padding:0;margin:0;font-size:.95rem;"><li style="margin:6px 0;color:#c9d1d9;">✓ 6 régions (Amsterdam, Boston, Manchester, Mumbai, São Paulo, Sydney)</li><li style="margin:6px 0;color:#c9d1d9;">✓ Sauvegardes automatiques et SSL inclus</li><li style="margin:6px 0;color:#c9d1d9;">✓ Modules personnalisés via Git / QuickGIT</li></ul>
+            </div>
+            <div style="flex:0 1 280px;min-width:220px;text-align:center;">
+                <a href="https://odoo4projects.com/?utm_source=odoo-expertos.com&utm_medium=hosting-hub-cta&utm_campaign=managed-hosting" target="_blank" rel="noopener sponsored" style="display:block;padding:16px 24px;background:linear-gradient(135deg,#FF6B35,#FF8A50);color:#fff;text-decoration:none;border-radius:12px;font-weight:700;font-size:1rem;box-shadow:0 10px 25px rgba(255,107,53,.3);">Voir les offres →</a>
+                <a href="/fr/odoo-hosting/" style="display:block;margin-top:14px;color:#9aa7b4;text-decoration:underline;font-size:.9rem;">Lire le comparatif d'hébergement</a>
+                <p style="color:#6b7785;font-size:.72rem;margin:14px 0 0;">Lien d'affiliation. Le prix reste identique pour vous.</p>
+            </div>
+        </div>
+    </section>
+
     </main>
 
     <!-- ANIMATED HOSTING BANNER - A/B Testing Variation 1 -->