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/backend.js

@@ -0,0 +1,102 @@
+/*
+ * Winter General Utilities
+ */
+
+/*
+ * Path helpers
+ */
+
+if ($.wn === undefined)
+    $.wn = {}
+if ($.oc === undefined)
+    $.oc = $.wn
+
+$.wn.backendUrl = function(url) {
+    var backendBasePath = $('meta[name="backend-base-path"]').attr('content')
+
+    if (!backendBasePath)
+        return url
+
+    if (url.substr(0, 1) == '/')
+        url = url.substr(1)
+
+    return backendBasePath + '/' + url
+}
+
+/*
+ * String escape
+ */
+if ($.wn === undefined)
+    $.wn = {}
+if ($.oc === undefined)
+    $.oc = $.wn
+
+$.wn.escapeHtmlString = function(string) {
+    var htmlEscapes = {
+            '&': '&',
+            '<': '&lt;',
+            '>': '&gt;',
+            '"': '&quot;',
+            "'": '&#x27;',
+            '/': '&#x2F;'
+        },
+        htmlEscaper = /[&<>"'\/]/g
+
+    return ('' + string).replace(htmlEscaper, function(match) {
+        return htmlEscapes[match];
+    })
+}
+
+/*
+ * Inverse Click Event (not used)
+ *
+ * Calls the handler function if the user has clicked outside the object
+ * and not on any of the elements in the exception list.
+ */
+/*
+$.fn.extend({
+    clickOutside: function(handler, exceptions) {
+        var $this = this;
+
+        $('body').on('click', function(event) {
+            if (exceptions && $.inArray(event.target, exceptions) > -1) {
+                return;
+            } else if ($.contains($this[0], event.target)) {
+                return;
+            } else {
+                handler(event, $this);
+            }
+        });
+
+        return this;
+    }
+})
+*/
+
+/*
+ * Browser Fixes
+ * - If another fix using JS is necessary, move this logic to backend.fixes.js
+ */
+
+/*
+ * Internet Explorer v11
+ * - IE11 will not honor height 100% when overflow is used on the Y axis.
+ */
+if (!!window.MSInputMethodContext && !!document.documentMode) {
+    $(window).on('resize', function() {
+        fixMediaManager()
+        fixSidebar()
+    })
+
+    function fixMediaManager() {
+        var $el = $('div[data-control="media-manager"] .control-scrollpad')
+        $el.height($el.parent().height())
+    }
+
+    function fixSidebar() {
+        $('#layout-sidenav').height(Math.max(
+            $('#layout-body').innerHeight(),
+            $(window).height() - $('#layout-mainmenu').height()
+        ))
+    }
+}