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

modules/cms/console/scaffold/theme/tailwind/partials/site/footer.stub

@@ -0,0 +1,21 @@
+        <!-- Scripts -->
+
+        {# jQuery AJAX Framework #}
+        <script src="{{ [
+            '@jquery',
+            '@framework',
+            '@framework.extras',
+        ] | theme }}"></script>
+
+        {# Vite extracted assets #}
+        {{ vite(['assets/src/js/theme-{{code}}.js'], 'theme-{{code}}') }}
+
+        {% scripts %}
+
+        {% flash %}
+            <p data-control="flash-message" data-interval="7" class="flashmessage {{ type }}">
+                {{ message }}
+            </p>
+        {% endflash %}
+    </body>
+</html>