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/classes/Partial.php

@@ -0,0 +1,24 @@
+<?php namespace Cms\Classes;
+
+/**
+ * The CMS partial class.
+ *
+ * @package winter\wn-cms-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class Partial extends CmsCompoundObject
+{
+    /**
+     * @var string The container name associated with the model, eg: pages.
+     */
+    protected $dirName = 'partials';
+
+    /**
+     * Returns name of a PHP class to us a parent for the PHP class created for the object's PHP section.
+     * @return string Returns the class name.
+     */
+    public function getCodeClassParent()
+    {
+        return PartialCode::class;
+    }
+}