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/routes.php

@@ -0,0 +1,44 @@
+<?php
+
+Event::listen('system.route', function () {
+
+    /**
+     * Register Backend routes before all user routes.
+     */
+
+    /**
+     * @event backend.beforeRoute
+     * Fires before backend routes get added
+     *
+     * Example usage:
+     *
+     *     Event::listen('backend.beforeRoute', function () {
+     *         // your code here
+     *     });
+     *
+     */
+    Event::fire('backend.beforeRoute');
+
+    /*
+     * Route everything to `Backend\Classes\BackendController`, which itself acts as a router for the Backend.
+     */
+    Route::group([
+        'middleware' => ['web'],
+        'prefix' => Config::get('cms.backendUri', 'backend')
+    ], function () {
+        Route::any('{slug?}', 'Backend\Classes\BackendController@run')->where('slug', '(.*)?');
+    });
+
+    /**
+     * @event backend.route
+     * Fires after backend routes have been added
+     *
+     * Example usage:
+     *
+     *     Event::listen('backend.route', function () {
+     *         // your code here
+     *     });
+     *
+     */
+    Event::fire('backend.route');
+});