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/controllers/Index.php

@@ -0,0 +1,81 @@
+<?php namespace Backend\Controllers;
+
+use Backend;
+use Redirect;
+use BackendMenu;
+use Backend\Classes\Controller;
+use Backend\Widgets\ReportContainer;
+
+/**
+ * Dashboard controller
+ *
+ * @package winter\wn-backend-module
+ * @author Alexey Bobkov, Samuel Georges
+ *
+ */
+class Index extends Controller
+{
+    use \Backend\Traits\InspectableContainer;
+
+    /**
+     * @var array Permissions required to view this page.
+     * @see checkPermissionRedirect()
+     */
+    public $requiredPermissions = [];
+
+    /**
+     * Constructor.
+     */
+    public function __construct()
+    {
+        parent::__construct();
+
+        BackendMenu::setContextOwner('Winter.Backend');
+
+        $this->addCss('/modules/backend/assets/css/dashboard/dashboard.css', 'core');
+    }
+
+    public function index()
+    {
+        if ($redirect = $this->checkPermissionRedirect()) {
+            return $redirect;
+        }
+
+        $this->initReportContainer();
+
+        $this->pageTitle = 'backend::lang.dashboard.menu_label';
+
+        BackendMenu::setContextMainMenu('dashboard');
+    }
+
+    public function index_onInitReportContainer()
+    {
+        $this->initReportContainer();
+
+        return ['#dashReportContainer' => $this->widget->reportContainer->render()];
+    }
+
+    /**
+     * Prepare the report widget used by the dashboard
+     * @param Model $model
+     * @return void
+     */
+    protected function initReportContainer()
+    {
+        new ReportContainer($this, 'config_dashboard.yaml');
+    }
+
+    /**
+     * Custom permissions check that will redirect to the next
+     * available menu item, if permission to this page is denied.
+     */
+    protected function checkPermissionRedirect()
+    {
+        if (!$this->user->hasAccess('backend.access_dashboard')) {
+            if ($first = array_first(BackendMenu::listMainMenuItems())) {
+                return Redirect::intended($first->url);
+            }
+            return Backend::redirect('backend/myaccount');
+        }
+    }
+}