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/widgets/table/assets/js/table.validator.length.js

@@ -0,0 +1,68 @@
+/*
+ * String length table validator.
+ */
++function ($) { "use strict";
+
+    // NAMESPACE CHECK
+    // ============================
+
+    if ($.wn.table === undefined)
+        throw new Error("The $.wn.table namespace is not defined. Make sure that the table.js script is loaded.");
+
+    if ($.wn.table.validator === undefined)
+        throw new Error("The $.wn.table.validator namespace is not defined. Make sure that the table.validator.base.js script is loaded.");
+
+    // CLASS DEFINITION
+    // ============================
+
+    var Base = $.wn.table.validator.base,
+        BaseProto = Base.prototype
+
+    var Length = function(options) {
+        Base.call(this, options)
+    };
+
+    Length.prototype = Object.create(BaseProto)
+    Length.prototype.constructor = Length
+
+    /*
+     * Validates a value and returns the error message. If there
+     * are no errors, returns undefined.
+     * The rowData parameter is an object containing all values in the
+     * target row.
+     */
+    Length.prototype.validateValue = function(value, rowData) {
+        value = this.trim(value)
+
+        if (value.length == 0)
+            return
+
+        if (this.options.min !== undefined || this.options.max !== undefined) {
+            if (this.options.min !== undefined) {
+                if (this.options.min.value === undefined)
+                    throw new Error('The min.value parameter is not defined in the Length table validator configuration')
+
+                if (value.length < this.options.min.value) {
+                    return this.options.min.message !== undefined ?
+                        this.options.min.message :
+                        "The string should not be shorter than " + this.options.min.value
+                }
+            }
+
+            if (this.options.max !== undefined) {
+                if (this.options.max.value === undefined)
+                    throw new Error('The max.value parameter is not defined in the Length table validator configuration')
+
+                if (value.length > this.options.max.value) {
+                    return this.options.max.message !== undefined ?
+                        this.options.max.message :
+                        "The string should not be longer than " + this.options.max.value
+                }
+            }
+        }
+
+        return
+    }
+
+    $.wn.table.validator.length = Length
+}(window.jQuery);