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/assets/js/winter.alert.js

@@ -0,0 +1,92 @@
+/*
+ * Alerts
+ *
+ * Displays alert and confirmation dialogs
+ *
+ * JavaScript API:
+ * $.wn.alert()
+ * $.wn.confirm()
+ *
+ * Dependences:
+ * - Sweet Alert
+ * - Translations (winter.lang.js)
+ */
+(function($){
+
+     if ($.wn === undefined)
+        $.wn = {}
+    if ($.oc === undefined)
+        $.oc = $.wn
+
+    $.wn.alert = function alert(message) {
+        swal({
+            title: message,
+            confirmButtonClass: 'btn-primary'
+        })
+    }
+
+    $.wn.confirm = function confirm(message, callback) {
+
+        swal({
+            title: message,
+            showCancelButton: true,
+            confirmButtonClass: 'btn-primary'
+        }, callback)
+
+    }
+
+})(jQuery);
+
+/*
+ * Implement alerts with AJAX framework
+ */
+
+$(window).on('ajaxErrorMessage', function(event, message){
+    if (!message) return
+
+    $.wn.alert(message)
+
+    // Prevent the default alert() message
+    event.preventDefault()
+})
+
+$(window).on('ajaxConfirmMessage', function(event, message){
+    if (!message) return
+
+    $.wn.confirm(message, function(isConfirm){
+        isConfirm
+            ? event.promise.resolve()
+            : event.promise.reject()
+    })
+
+    // Prevent the default confirm() message
+    event.preventDefault()
+    return true
+})
+
+/*
+ * Override "Sweet Alert" functions to translate default buttons
+ */
+
+$(document).ready(function(){
+    if (!window.swal) return
+
+    var swal = window.swal
+
+    window.sweetAlert = window.swal = function(message, callback) {
+        if (typeof message === 'object') {
+            // Do not override if texts are provided
+            message.confirmButtonText = message.confirmButtonText || $.wn.lang.get('alert.confirm_button_text')
+            message.cancelButtonText = message.cancelButtonText || $.wn.lang.get('alert.cancel_button_text')
+        }
+        else {
+            message = {
+                title: message,
+                confirmButtonText: $.wn.lang.get('alert.confirm_button_text'),
+                cancelButtonText: $.wn.lang.get('alert.cancel_button_text')
+            }
+        }
+
+        swal(message, callback)
+    }
+})