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/fixtures/npm/package-vitetheme.json

@@ -0,0 +1,12 @@
+{
+    "type": "module",
+    "workspaces": {
+        "packages": [
+            "modules/system/tests/fixtures/themes/assettest"
+        ]
+    },
+    "devDependencies": {
+        "laravel-vite-plugin": "^1.0.2",
+        "vite": "^5.2.11"
+    }
+}