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/Content.php

@@ -0,0 +1,73 @@
+<?php namespace Cms\Classes;
+
+use File;
+use Markdown;
+
+/**
+ * The CMS content file class.
+ *
+ * @package winter\wn-cms-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class Content extends CmsCompoundObject
+{
+    /**
+     * @var string The container name associated with the model, eg: pages.
+     */
+    protected $dirName = 'content';
+
+    /**
+     * @var array Allowable file extensions.
+     */
+    protected $allowedExtensions = ['htm', 'txt', 'md'];
+
+    /**
+     * @var array List of attribute names which are not considered "settings".
+     */
+    protected $purgeable = ['parsedMarkup'];
+
+    /**
+     * Initializes the object properties from the cached data. The extra data
+     * set here becomes available as attributes set on the model after fetch.
+     * @param array $item The cached data array.
+     */
+    public static function initCacheItem(&$item)
+    {
+        $item['parsedMarkup'] = (new static($item))->parseMarkup();
+    }
+
+    /**
+     * Returns a default value for parsedMarkup attribute.
+     * @return string
+     */
+    public function getParsedMarkupAttribute()
+    {
+        if (array_key_exists('parsedMarkup', $this->attributes)) {
+            return $this->attributes['parsedMarkup'];
+        }
+
+        return $this->attributes['parsedMarkup'] = $this->parseMarkup();
+    }
+
+    /**
+     * Parses the content markup according to the file type.
+     * @return string
+     */
+    public function parseMarkup()
+    {
+        $extension = strtolower(File::extension($this->fileName));
+
+        switch ($extension) {
+            case 'txt':
+                $result = htmlspecialchars($this->markup);
+                break;
+            case 'md':
+                $result = Markdown::parse($this->markup);
+                break;
+            default:
+                $result = $this->markup;
+        }
+
+        return $result;
+    }
+}