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/system/assets/ui/docs/autocomplete.md

@@ -0,0 +1,19 @@
+# Autocomplete
+
+### Autocomplete
+
+Autocomplete control.
+
+    <input
+        class="form-control"
+        placeholder="Search for something or else"
+        data-control="autocomplete"
+        data-source="something: 'Something', else: 'Else'" />
+
+## JavaScript API
+
+```js
+$('input').autocomplete({
+    source: { something: 'Something', else: 'Else' }
+})
+```