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/reportwidgets/ActiveTheme.php

@@ -0,0 +1,71 @@
+<?php namespace Cms\ReportWidgets;
+
+use Lang;
+use BackendAuth;
+use Cms\Classes\Theme;
+use Cms\Models\MaintenanceSetting;
+use Backend\Classes\ReportWidgetBase;
+use ApplicationException;
+use Exception;
+
+/**
+ * Active theme report widget.
+ *
+ * @package winter\wn-backend-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class ActiveTheme extends ReportWidgetBase
+{
+    /**
+     * @var string A unique alias to identify this widget.
+     */
+    protected $defaultAlias = 'activetheme';
+
+    /**
+     * Renders the widget.
+     */
+    public function render()
+    {
+        try {
+            $this->loadData();
+        }
+        catch (Exception $ex) {
+            $this->vars['error'] = $ex->getMessage();
+        }
+
+        return $this->makePartial('widget');
+    }
+
+    public function defineProperties()
+    {
+        return [
+            'title' => [
+                'title'             => 'backend::lang.dashboard.widget_title_label',
+                'default'           => 'cms::lang.dashboard.active_theme.widget_title_default',
+                'type'              => 'string',
+                'validationPattern' => '^.+$',
+                'validationMessage' => 'backend::lang.dashboard.widget_title_error',
+            ]
+        ];
+    }
+
+    /**
+     * @inheritDoc
+     */
+    protected function loadAssets()
+    {
+        $this->addCss('css/activetheme.css', 'core');
+    }
+
+    protected function loadData()
+    {
+        if (!$theme = Theme::getActiveTheme()) {
+            throw new ApplicationException(Lang::get('cms::lang.theme.not_found_name', ['name'=>Theme::getActiveThemeCode()]));
+        }
+
+        $this->vars['theme'] = $theme;
+        $this->vars['inMaintenance'] = MaintenanceSetting::get('is_enabled');
+        $this->vars['canManage'] = BackendAuth::getUser()->hasAccess('cms.manage_themes');
+        $this->vars['canConfig'] = BackendAuth::getUser()->hasAccess('cms.manage_theme_options');
+    }
+}