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/UserThrottle.php

@@ -0,0 +1,36 @@
+<?php namespace Backend\Models;
+
+use Config;
+use Winter\Storm\Auth\Models\Throttle as ThrottleBase;
+
+/**
+ * Administrator throttling model
+ *
+ * @package winter\wn-backend-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class UserThrottle extends ThrottleBase
+{
+    /**
+     * @var string The database table used by the model.
+     */
+    protected $table = 'backend_user_throttle';
+
+    /**
+     * @var array Relations
+     */
+    public $belongsTo = [
+        'user' => User::class
+    ];
+
+    /**
+     * @inheritDoc
+     */
+    public function __construct(array $attributes = [])
+    {
+        parent::__construct($attributes);
+
+        static::$attemptLimit = Config::get('auth.throttle.attemptLimit', 5);
+        static::$suspensionTime = Config::get('auth.throttle.suspensionTime', 15);
+    }
+}