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/backend/tests/fixtures/assets/compilation.js

@@ -0,0 +1,5 @@
+/* Comments
+
+=require js/file1.js
+=require js/file2.js
+*/

modules/backend/tests/fixtures/assets/js/file1.js

@@ -0,0 +1 @@
+console.log('Test File 1');

modules/backend/tests/fixtures/assets/js/file2.js

@@ -0,0 +1 @@
+console.log('Test File 2');