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/HasManyThroughModelTest.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace System\Tests\Plugins\Database;
+
+use System\Tests\Bootstrap\PluginTestCase;
+use Database\Tester\Models\Author;
+use Database\Tester\Models\Country;
+use Database\Tester\Models\Post;
+use Winter\Storm\Database\Collection;
+use Model;
+
+class HasManyThroughModelTest extends PluginTestCase
+{
+    public function setUp() : void
+    {
+        parent::setUp();
+
+        include_once base_path() . '/modules/system/tests/fixtures/plugins/database/tester/models/Post.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/Country.php';
+
+        $this->runPluginRefreshCommand('Database.Tester');
+    }
+
+    public function testGet()
+    {
+        Model::unguard();
+        $country = Country::create(['name' => 'Australia']);
+        $author1 = Author::create(['name' => 'Stevie', 'email' => 'stevie@email.tld']);
+        $author2 = Author::create(['name' => 'Louie', 'email' => 'louie@email.tld']);
+        $post1 = Post::create(['title' => "First post", 'description' => "Yay!!"]);
+        $post2 = Post::create(['title' => "Second post", 'description' => "Woohoo!!"]);
+        $post3 = Post::create(['title' => "Third post", 'description' => "Yipiee!!"]);
+        $post4 = Post::make(['title' => "Fourth post", 'description' => "Hooray!!"]);
+        Model::reguard();
+
+        // Set data
+        $author1->country = $country;
+        $author2->country = $country;
+
+        $author1->posts = new Collection([$post1, $post2]);
+        $author2->posts = new Collection([$post3, $post4]);
+
+        $author1->save();
+        $author2->save();
+
+        $country = Country::with([
+            'posts'
+        ])->find($country->id);
+
+        $this->assertEquals([
+            $post1->id,
+            $post2->id,
+            $post3->id,
+            $post4->id
+        ], $country->posts->pluck('id')->toArray());
+    }
+}