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/twig/FlashNode.php

@@ -0,0 +1,67 @@
+<?php namespace Cms\Twig;
+
+use Twig\Node\Node as TwigNode;
+use Twig\Compiler as TwigCompiler;
+
+/**
+ * Represents a flash node
+ *
+ * @package winter\wn-cms-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class FlashNode extends TwigNode
+{
+    public function __construct($name, TwigNode $body, $lineno, $tag = 'flash')
+    {
+        parent::__construct(['body' => $body], ['name' => $name], $lineno, $tag);
+    }
+
+    /**
+     * Compiles the node to PHP.
+     *
+     * @param TwigCompiler $compiler A TwigCompiler instance
+     */
+    public function compile(TwigCompiler $compiler)
+    {
+        $attrib = $this->getAttribute('name');
+
+        $compiler
+            ->write('$_type = isset($context["type"]) ? $context["type"] : null;')
+            ->write('$_message = isset($context["message"]) ? $context["message"] : null;')
+        ;
+
+        if ($attrib == 'all') {
+            $compiler
+                ->addDebugInfo($this)
+                ->write('foreach (Flash::all() as $type => $message) {'.PHP_EOL)
+                ->indent()
+                    ->write('$context["type"] = $type;')
+                    ->write('$context["message"] = $message;')
+                    ->subcompile($this->getNode('body'))
+                ->outdent()
+                ->write('}'.PHP_EOL)
+            ;
+        }
+        else {
+            $compiler
+                ->addDebugInfo($this)
+                ->write('$context["type"] = ')
+                ->string($attrib)
+                ->write(';')
+                ->write('foreach (Flash::')
+                ->raw($attrib)
+                ->write('() as $message) {'.PHP_EOL)
+                ->indent()
+                    ->write('$context["message"] = $message;')
+                    ->subcompile($this->getNode('body'))
+                ->outdent()
+                ->write('}'.PHP_EOL)
+            ;
+        }
+
+        $compiler
+            ->write('$context["type"] = $_type;')
+            ->write('$context["message"] = $_message;')
+        ;
+    }
+}