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/tests/classes/PluginBaseTest.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace System\Tests\Classes;
+
+use System\Tests\Bootstrap\PluginManagerTestCase;
+
+class PluginBaseTest extends PluginManagerTestCase
+{
+    //
+    // Tests
+    //
+
+    public function testGetPluginVersions()
+    {
+        $expectedVersions = [
+            '1.0.1' => [
+                'Added some upgrade file and some "seeding"',
+                'some_seeding_file.php' //does not exist
+            ],
+            '1.0.2' => [
+                'Added some stuff',
+            ],
+            '1.0.3' => [
+                'Bug fix update that uses no scripts'
+            ],
+            '1.0.4' => [
+                'Another fix'
+            ],
+            '1.0.5' => [
+                'Create blog settings table',
+                'Another update message',
+                'Yet one more update message',
+            ],
+            '1.1.0' => [
+                '!!! Drop support for blog settings',
+            ],
+            '1.2.0' => [
+                '!!! Security update - see: https://wintercms.com',
+            ],
+            '1.3.0' => [
+                '!!! We\'ve refactored major parts of this plugin. Please see the website for more information.',
+            ],
+            '1.3.1' => [
+                'Minor bug fix Please see changelog',
+            ],
+            '1.3.2' => [
+                'Added support for Translate plugin. Added some new languages.',
+            ],
+            '1.4.1' => [
+                '!!! Major update here.',
+            ],
+            '1.5.0' => [
+                '!!! Another major update to fix several issues',
+            ],
+            '1.5.1' => [
+                'Improved signature with the Test::method()',
+                'Translation updates.',
+            ],
+        ];
+
+        $plugin = $this->manager->findByIdentifier('Winter.Tester');
+        $versions = $plugin->getPluginVersions(false);
+
+        $this->assertNotNull($versions);
+        $this->assertEquals($expectedVersions, $versions);
+    }
+}