Footer "Useful Links": four items on the six DE/ES pages (DE/ES follow-up to 31c02b1)

The translated pages now carry the same four footer items as the three English pages:
ODOO Bootcamp -> /odoo-erp-automation-bootcamp/, ODOO Hosting in 2027 (DE) / ODOO Hosting en
2027 (ES), Support/Soporte, Rechtliches/Aviso legal. Deleted: Startseite/Inicio,
Datenschutz/Privacidad, AGB/Terminos, Kontakt/Contactenos.

Rebuilt with work/i18n/build-i18n.py from the translator's six files (work/i18n/I18N-BUILD-PLAN.md
section 5), then: place-hero-slot.py for de|es/index.html, place-slot.py for the two 2027 pages,
insert-hero-i18n.py for the two bootcamp pages (the hero CSS is language-neutral chrome held
outside the translated source). Nothing else changed: git diff 31c02b1 over these six files is
the footer list and nothing else - bootcamp hero, three buy forms (product_id 12), 465.00,
selector and hreflang clusters untouched.

Checked: verify-html.py PROBLEMS: 0; node --check static/lang.js OK; verify-footer-useful-links-de-es.py
PROBLEMS: 0; test-build.py 88/88; test-lang.js 31/31; check-links.py BROKEN/MISPLACED: 0;
impeccable detector identical finding set on all six pages (0 changed lines).

es/odoo-hosting-2027.html

@@ -984,11 +984,10 @@
           <div>
             <h4>Enlaces útiles</h4>
             <ul>
-              <li><a href="/es/">Inicio</a></li>
-              <li><a href="/es/odoo-hosting-2027.html">Odoo Hosting 2027</a></li>
+              <li><a href="/odoo-erp-automation-bootcamp/">ODOO Bootcamp</a></li>
+              <li><a href="/es/odoo-hosting-2027.html">ODOO Hosting en 2027</a></li>
               <li><a href="/es/support.html">Soporte</a></li>
               <li><a href="/legal.html">Aviso legal</a></li>
-              <li><a href="/es/support.html#contact">Contáctenos</a></li>
             </ul>
           </div>
           <div>