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/console/traits/HasPluginArgument.php

@@ -0,0 +1,79 @@
+<?php namespace System\Console\Traits;
+
+use InvalidArgumentException;
+use System\Classes\PluginBase;
+use System\Classes\PluginManager;
+
+/**
+ * Console Command Trait that provides autocompletion for the "plugin" argument
+ *
+ * @package winter\wn-system-module
+ * @author Luke Towers
+ */
+trait HasPluginArgument
+{
+    /**
+     * @var string What type of plugins to suggest in the CLI autocompletion. Valid values: "enabled", "disabled", "all"
+     */
+    // protected $hasPluginsFilter = 'enabled';
+
+    /**
+     * @var bool Validate the provided plugin input against the PluginManager, default true.
+     */
+    // protected $validatePluginInput = true;
+
+    /**
+     * Return available plugins for autocompletion of the "plugin" argument
+     */
+    public function suggestPluginValues()
+    {
+        $manager = PluginManager::instance();
+        $plugins = array_keys($manager->getAllPlugins());
+        $filter = $this->hasPluginsFilter ?? 'enabled';
+
+        // Apply the hasPluginsFilter on the list of plugins to return
+        if ($filter !== 'all') {
+            foreach ($plugins as $i => $identifier) {
+                $disabled = $manager->isDisabled($identifier);
+
+                if (
+                    (!$disabled && $filter === 'disabled')
+                    || ($disabled && $filter === 'enabled')
+                ) {
+                    unset($plugins[$i]);
+                }
+            }
+        }
+
+        return $plugins;
+    }
+
+    /**
+     * Get the desired plugin name from the input.
+     * @throws InvalidArgumentException if the provided plugin name is invalid
+     */
+    public function getPluginIdentifier($identifier = null): string
+    {
+        $pluginManager = PluginManager::instance();
+        $pluginName = $identifier ?? $this->argument('plugin');
+        $pluginName = $pluginManager->normalizeIdentifier($pluginName);
+
+        if (
+            (isset($this->validatePluginInput) && $this->validatePluginInput !== false)
+            && !$pluginManager->hasPlugin($pluginName)
+        ) {
+            throw new InvalidArgumentException(sprintf('Plugin "%s" could not be found.', $pluginName));
+        }
+
+        return $pluginName;
+    }
+
+    /**
+     * Get the plugin instance for the input.
+     * @throws InvalidArgumentException if the provided plugin name is invalid
+     */
+    public function getPlugin($identifier = null): ?PluginBase
+    {
+        return PluginManager::instance()->findByIdentifier($this->getPluginIdentifier($identifier));
+    }
+}