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/system/console/asset/mix/MixList.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace System\Console\Asset\Mix;
+
+use System\Console\Asset\AssetList;
+
+class MixList extends AssetList
+{
+    /**
+     * @var string|null The default command name for lazy loading.
+     */
+    protected static $defaultName = 'mix:list';
+
+    /**
+     * @var string The name and signature of this command.
+     */
+    protected $signature = 'mix:list
+        {--json : Output as JSON}';
+
+    /**
+     * @var string The console command description.
+     */
+    protected $description = 'List all registered Mix packages in this project.';
+
+    /**
+     * The asset compiler being used
+     */
+    protected string $assetType = 'mix';
+}