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/twig/MailPartialNode.php

@@ -0,0 +1,59 @@
+<?php namespace System\Twig;
+
+use Twig\Node\Node as TwigNode;
+use Twig\Compiler as TwigCompiler;
+
+/**
+ * Represents a partial node
+ *
+ * @package winter\wn-cms-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class MailPartialNode extends TwigNode
+{
+    public function __construct(TwigNode $nodes, $paramNames, $body, $lineno, $tag = 'partial')
+    {
+        $nodes = ['nodes' => $nodes];
+
+        if ($body) {
+            $nodes['body'] = $body;
+        }
+
+        parent::__construct($nodes, ['names' => $paramNames], $lineno, $tag);
+    }
+
+    /**
+     * Compiles the node to PHP.
+     *
+     * @param TwigCompiler $compiler A TwigCompiler instance
+     */
+    public function compile(TwigCompiler $compiler)
+    {
+        $compiler->addDebugInfo($this);
+
+        $compiler->write("\$context['__system_partial_params'] = [];\n");
+
+        if ($this->hasNode('body')) {
+            $compiler
+                ->addDebugInfo($this)
+                ->write('ob_start();')
+                ->subcompile($this->getNode('body'))
+                ->write("\$context['__system_partial_params']['body'] = ob_get_clean();");
+        }
+
+        for ($i = 1; $i < count($this->getNode('nodes')); $i++) {
+            $compiler->write("\$context['__system_partial_params']['".$this->getAttribute('names')[$i-1]."'] = ");
+            $compiler->subcompile($this->getNode('nodes')->getNode($i));
+            $compiler->write(";\n");
+        }
+
+        $compiler
+            ->write("echo \System\Classes\MailManager::instance()->renderPartial(")
+            ->subcompile($this->getNode('nodes')->getNode(0))
+            ->write(", \$context['__system_partial_params']")
+            ->write(");\n")
+        ;
+
+        $compiler->write("unset(\$context['__system_partial_params']);\n");
+    }
+}