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/traits/PropertyContainer.php

@@ -0,0 +1,121 @@
+<?php namespace System\Traits;
+
+/**
+ * Property container trait
+ *
+ * Adds properties and methods for classes that could define properties,
+ * like components or report widgets.
+ *
+ * @package winter\wn-system-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+
+trait PropertyContainer
+{
+    /**
+     * @var array Contains the object property values.
+     */
+    protected $properties = [];
+
+    /**
+     * Validates the properties against the defined properties of the class.
+     * This method also sets default properties.
+     * @param array $properties The supplied property values.
+     * @return array The validated property set, with defaults applied.
+     */
+    public function validateProperties(array $properties)
+    {
+        $definedProperties = $this->defineProperties() ?: [];
+
+        /*
+         * Determine and implement default values
+         */
+        $defaultProperties = [];
+
+        foreach ($definedProperties as $name => $information) {
+            if (array_key_exists('default', $information)) {
+                $defaultProperties[$name] = $information['default'];
+            }
+        }
+
+        $properties = array_merge($defaultProperties, $properties);
+
+        return $properties;
+    }
+
+    /**
+     * Defines the properties used by this class.
+     *
+     * This method should be overriden in your extended class and return an array of properties that your class uses,
+     * with the keys of the array being the name of the properties, and the values being an array of property
+     * parameters.
+     *
+     * Example:
+     *      return [
+     *          'propertyName' => [
+     *              'title' => 'Property name',
+     *              'description' => 'Property description',
+     *              'default' => 'Default value'
+     *          ],
+     *      ];
+     *
+     * @return array
+     */
+    public function defineProperties()
+    {
+        return [];
+    }
+
+    /**
+     * Sets multiple properties.
+     * @param array $properties
+     * @return void
+     */
+    public function setProperties($properties)
+    {
+        $this->properties = $this->validateProperties($properties);
+    }
+
+    /**
+     * Sets a property value
+     * @param string $name
+     * @param mixed $value
+     * @return void
+     */
+    public function setProperty($name, $value)
+    {
+        $this->properties[$name] = $value;
+    }
+
+    /**
+     * Returns all properties.
+     * @return array
+     */
+    public function getProperties()
+    {
+        return $this->properties;
+    }
+
+    /**
+     * Returns a defined property value or default if one is not set.
+     * @param string $name The property name to look for.
+     * @param string $default A default value to return if no name is found.
+     * @return mixed The property value or the default specified.
+     */
+    public function property($name, $default = null)
+    {
+        return array_key_exists($name, $this->properties)
+            ? $this->properties[$name]
+            : $default;
+    }
+
+    /**
+     * Returns options for multi-option properties (drop-downs, etc.)
+     * @param string $property Specifies the property name
+     * @return array Return an array of option values and descriptions
+     */
+    public function getPropertyOptions($property)
+    {
+        return [];
+    }
+}