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/helpers/Cms.php

@@ -0,0 +1,48 @@
+<?php namespace Cms\Helpers;
+
+use Url;
+use Route;
+use Config;
+
+/**
+ * CMS Helper
+ *
+ * @package winter\wn-cms-module
+ * @see \Cms\Facades\Cms
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class Cms
+{
+    protected static $actionExists;
+
+    /**
+     * Returns a URL in context of the Frontend
+     */
+    public function url($path = null)
+    {
+        $routeAction = 'Cms\Classes\CmsController@run';
+
+        if (self::$actionExists === null) {
+            self::$actionExists = Route::getRoutes()->getByAction($routeAction) !== null;
+        }
+
+        if (substr($path, 0, 1) == '/') {
+            $path = substr($path, 1);
+        }
+
+        if (self::$actionExists) {
+            return Url::action($routeAction, ['slug' => $path]);
+        }
+
+        return Url::to($path);
+    }
+
+    public static function safeModeEnabled()
+    {
+        $safeMode = Config::get('cms.enableSafeMode', null);
+        if ($safeMode === null) {
+            $safeMode = !Config::get('app.debug', false);
+        }
+        return $safeMode;
+    }
+}