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/scaffold/test/test.class.stub

@@ -0,0 +1,34 @@
+<?php
+
+namespace {{ test_namespace }};
+
+use {{ tested_class_full }};
+use System\Tests\Bootstrap\TestCase as WinterTestCase;
+
+class {{ test_class }} extends WinterTestCase
+{
+    /**
+     * An instance of the class being tested
+     */
+    protected ?{{ tested_class }} $instance = null;
+
+    /**
+     * Initialize the {{ tested_class }}
+     */
+    public function setUp(): void
+    {
+        parent::setUp();
+
+        $this->instance = $this->app->make({{ tested_class }}::class);
+    }
+{% for method in public_methods %}
+
+    /**
+     * Test for the {{ method }} method
+     */
+    public function test_{{ method }}()
+    {
+        $this->assertTrue(method_exists($this->instance, '{{ method }}'));
+    }
+{% endfor %}
+}