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/traits/WidgetMaker.php

@@ -0,0 +1,75 @@
+<?php namespace Backend\Traits;
+
+use Lang;
+use Backend\Classes\FormField;
+use SystemException;
+
+/**
+ * Widget Maker Trait
+ *
+ * Adds widget based methods to a controller class, or a class that
+ * contains a `$controller` property referencing a controller.
+ *
+ * @package winter\wn-backend-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+trait WidgetMaker
+{
+    /**
+     * Makes a widget object with the supplied configuration file.
+     * @param string $class Widget class name
+     * @param array $widgetConfig An array of config.
+     * @return mixed|\Backend\Classes\WidgetBase The widget object
+     */
+    public function makeWidget($class, $widgetConfig = [])
+    {
+        $controller = property_exists($this, 'controller') && $this->controller
+            ? $this->controller
+            : $this;
+
+        if (!class_exists($class)) {
+            throw new SystemException(Lang::get('backend::lang.widget.not_registered', [
+                'name' => $class
+            ]));
+        }
+
+        return new $class($controller, $widgetConfig);
+    }
+
+    /**
+     * Makes a form widget object with the supplied form field and widget configuration.
+     * @param string $class Widget class name
+     * @param mixed $fieldConfig A field name, an array of config or a FormField object.
+     * @param array $widgetConfig An array of config.
+     * @return \Backend\Classes\FormWidgetBase The widget object
+     */
+    public function makeFormWidget($class, $fieldConfig = [], $widgetConfig = [])
+    {
+        $controller = property_exists($this, 'controller') && $this->controller
+            ? $this->controller
+            : $this;
+
+        if (!class_exists($class)) {
+            throw new SystemException(Lang::get('backend::lang.widget.not_registered', [
+                'name' => $class
+            ]));
+        }
+
+        if (is_string($fieldConfig)) {
+            $fieldConfig = ['name' => $fieldConfig];
+        }
+
+        if (is_array($fieldConfig)) {
+            $formField = new FormField(
+                array_get($fieldConfig, 'name'),
+                array_get($fieldConfig, 'label')
+            );
+            $formField->displayAs('widget', $fieldConfig);
+        }
+        else {
+            $formField = $fieldConfig;
+        }
+
+        return new $class($controller, $formField, $widgetConfig);
+    }
+}