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/backend/reportwidgets/Welcome.php

@@ -0,0 +1,64 @@
+<?php namespace Backend\ReportWidgets;
+
+use BackendAuth;
+use Backend\Models\AccessLog;
+use Backend\Classes\ReportWidgetBase;
+use Backend\Models\BrandSetting;
+use Exception;
+
+/**
+ * User welcome report widget.
+ *
+ * @package winter\wn-backend-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class Welcome extends ReportWidgetBase
+{
+    /**
+     * @var string A unique alias to identify this widget.
+     */
+    protected $defaultAlias = 'welcome';
+
+    /**
+     * Renders the widget.
+     */
+    public function render()
+    {
+        try {
+            $this->loadData();
+        }
+        catch (Exception $ex) {
+            $this->vars['error'] = $ex->getMessage();
+        }
+
+        return $this->makePartial('widget');
+    }
+
+    public function defineProperties()
+    {
+        return [
+            'title' => [
+                'title'             => 'backend::lang.dashboard.widget_title_label',
+                'default'           => 'backend::lang.dashboard.welcome.widget_title_default',
+                'type'              => 'string',
+                'validationPattern' => '^.+$',
+                'validationMessage' => 'backend::lang.dashboard.widget_title_error',
+            ]
+        ];
+    }
+
+    /**
+     * @inheritDoc
+     */
+    protected function loadAssets()
+    {
+        $this->addCss('css/welcome.css', 'core');
+    }
+
+    protected function loadData()
+    {
+        $this->vars['user'] = $user = BackendAuth::getUser();
+        $this->vars['appName'] = BrandSetting::get('app_name');
+        $this->vars['lastSeen'] = AccessLog::getRecent($user);
+    }
+}