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/plugins/database/HasOneThroughModelTest.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace System\Tests\Plugins\Database;
+
+use System\Tests\Bootstrap\PluginTestCase;
+use Database\Tester\Models\Author;
+use Database\Tester\Models\Phone;
+use Database\Tester\Models\User;
+use Model;
+
+class HasOneThroughModelTest extends PluginTestCase
+{
+    public function setUp() : void
+    {
+        parent::setUp();
+
+        include_once base_path() . '/modules/system/tests/fixtures/plugins/database/tester/models/User.php';
+        include_once base_path() . '/modules/system/tests/fixtures/plugins/database/tester/models/Author.php';
+        include_once base_path() . '/modules/system/tests/fixtures/plugins/database/tester/models/Phone.php';
+
+        $this->runPluginRefreshCommand('Database.Tester');
+    }
+
+    public function testGet()
+    {
+        Model::unguard();
+        $phone = Phone::create(['number' => '08 1234 5678']);
+        $author = Author::create(['name' => 'Stevie', 'email' => 'stevie@email.tld']);
+        $user = User::create(['name' => 'Stevie', 'email' => 'stevie@email.tld']);
+        Model::reguard();
+
+        // Set data
+        $author->phone = $phone;
+        $author->user = $user;
+        $author->save();
+
+        $user = User::with([
+            'phone'
+        ])->find($user->id);
+
+        $this->assertEquals($phone->id, $user->phone->id);
+    }
+}