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/assets/ui/js/checkbox.balloon.js

@@ -0,0 +1,67 @@
+/*
+ * Balloon selector control. 
+ *
+ * Data attributes:
+ * - data-control="balloon-selector" - enables the plugin
+ *
+ */
++function ($) { "use strict";
+
+    var BalloonSelector = function (element, options) {
+
+        this.$el = $(element)
+        this.$field = $('input', this.$el)
+
+        this.options = options || {};
+
+        var self = this;
+        $('li', this.$el).click(function(){
+            if (self.$el.hasClass('control-disabled')) {
+                return
+            }
+
+            $('li', self.$el).removeClass('active')
+
+            $(this).addClass('active')
+
+            self.$field
+                .val($(this).data('value'))
+                .trigger('change')
+        })
+    }
+
+    BalloonSelector.DEFAULTS = {}
+
+    // BALLOON SELECTOR PLUGIN DEFINITION
+    // ===================================
+
+    var old = $.fn.balloonSelector
+
+    $.fn.balloonSelector = function (option) {
+        return this.each(function () {
+            var $this = $(this)
+            var data  = $this.data('oc.balloon-selector')
+            var options = $.extend({}, BalloonSelector.DEFAULTS, $this.data(), typeof option == 'object' && option)
+
+            if (!data) $this.data('oc.balloon-selector', (data = new BalloonSelector(this, options)))
+        })
+    }
+
+    $.fn.balloonSelector.Constructor = BalloonSelector
+
+    // BALLOON SELECTOR NO CONFLICT
+    // ===================================
+
+    $.fn.balloonSelector.noConflict = function () {
+        $.fn.balloonSelector = old
+        return this
+    }
+
+    // BALLOON SELECTOR DATA-API
+    // ===================================
+
+    $(document).on('render', function(){
+        $('div[data-control=balloon-selector]').balloonSelector()
+    })
+
+}(window.jQuery);