feat: VivesPOS landing on Winter CMS 1.2 — theme + plugin + Dockerfile

- Base: wintercms/winter branch 1.2 (full framework)
- Theme vivespos: Canvas 7 + Bootstrap 5 CDN, custom CSS
- Layout: deferred GTM/GA4 tracking, JSON-LD SoftwareApplication
- Partials: hero (offline-first), features, modes (offline/nube toggle),
  screenshots, pricing (3 planes), comparison, FAQ, CTA
- Plugin VivesPOS.Site with ContactForm
- Dockerfile: PHP 8.2 Apache, port 80, healthcheck
- Added winter/wn-pages, blog, sitemap, seo plugins
- Active theme set to vivespos

themes/vivespos/partials/site/footer.htm

@@ -0,0 +1,47 @@
+description = "Site footer — links, branding, WhatsApp"
+==
+<footer class="bg-dark text-light pt-5 pb-4">
+  <div class="container">
+    <div class="row g-4">
+      <div class="col-lg-4">
+        <div class="d-flex align-items-center gap-2 mb-3">
+          <span style="background:var(--vp-brand);color:#fff;width:32px;height:32px;border-radius:.4rem;display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:1rem;">V</span>
+          <span class="fw-bold fs-5">VivesPOS</span>
+        </div>
+        <p class="text-secondary small">Punto de venta offline-first para Mexico. Vende sin internet. Tus datos siempre tuyos. Diseniado para teclado y scanner de codigo de barras.</p>
+        <p class="text-secondary small mb-0">Hecho en Mexico. <span class="text-brand">VivesCloud</span>.</p>
+      </div>
+      <div class="col-6 col-lg-2">
+        <h5 class="h6 fw-bold mb-3">Producto</h5>
+        <ul class="list-unstyled footer-links small">
+          <li class="mb-2"><a href="#features">Caracteristicas</a></li>
+          <li class="mb-2"><a href="#modos">Offline vs Nube</a></li>
+          <li class="mb-2"><a href="#precios">Precios</a></li>
+          <li class="mb-2"><a href="#comparativa">Comparativa</a></li>
+        </ul>
+      </div>
+      <div class="col-6 col-lg-2">
+        <h5 class="h6 fw-bold mb-3">Recursos</h5>
+        <ul class="list-unstyled footer-links small">
+          <li class="mb-2"><a href="#faq">Preguntas frecuentes</a></li>
+          <li class="mb-2"><a href="#requisitos">Requisitos del sistema</a></li>
+          <li class="mb-2"><a href="#instalacion">Instalacion</a></li>
+          <li class="mb-2"><a href="{{ '/blog'|page }}">Blog</a></li>
+        </ul>
+      </div>
+      <div class="col-lg-3">
+        <h5 class="h6 fw-bold mb-3">Contacto</h5>
+        <p class="small text-secondary mb-2">WhatsApp: <a href="https://wa.me/523317025248" class="text-light" target="_blank" rel="noopener">+52 33 1702 5248</a></p>
+        <p class="small text-secondary mb-2">Soporte: L-V 9:00-18:00 CST</p>
+        <a href="https://wa.me/523317025248?text=Hola%2C%20quiero%20mas%20info%20de%20VivesPOS" class="btn btn-brand-cta btn-sm" target="_blank" rel="noopener">
+          <i class="bi-whatsapp me-1"></i>Agendar demo
+        </a>
+      </div>
+    </div>
+    <hr class="border-secondary my-4">
+    <div class="d-flex justify-content-between align-items-center flex-wrap gap-2">
+      <p class="text-secondary small mb-0">&copy; 2026 VivesPOS. Todos los derechos reservados.</p>
+      <p class="text-secondary small mb-0">Windows &middot; Linux &middot; Offline-first &middot; ESC/POS</p>
+    </div>
+  </div>
+</footer>