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/models/UserPreference.php

@@ -0,0 +1,35 @@
+<?php namespace Backend\Models;
+
+use BackendAuth;
+use SystemException;
+use Winter\Storm\Auth\Models\Preferences as PreferencesBase;
+
+/**
+ * All preferences for the backend user
+ *
+ * @package winter\wn-backend-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class UserPreference extends PreferencesBase
+{
+    /**
+     * @var string The database table used by the model.
+     */
+    protected $table = 'backend_user_preferences';
+
+    public $timestamps = false;
+
+    protected static $cache = [];
+
+    /**
+     * Checks for a supplied user or uses the default logged in. You should override this method.
+     * @param mixed $user An optional back-end user object.
+     * @return User object
+     */
+    public function resolveUser($user)
+    {
+        $user = BackendAuth::getUser();
+
+        return $user;
+    }
+}