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/classes/ErrorHandler.php

@@ -0,0 +1,83 @@
+<?php namespace System\Classes;
+
+use View;
+use Config;
+use Cms\Classes\Theme;
+use Cms\Classes\Router;
+use Cms\Classes\Controller as CmsController;
+use Winter\Storm\Exception\ErrorHandler as ErrorHandlerBase;
+use Winter\Storm\Exception\SystemException;
+use Symfony\Component\HttpFoundation\Response;
+
+/**
+ * System Error Handler, this class handles application exception events.
+ *
+ * @package winter\wn-system-module
+ * @author Alexey Bobkov, Samuel Georges
+ */
+class ErrorHandler extends ErrorHandlerBase
+{
+    /**
+     * @inheritDoc
+     */
+    // public function handleException(Exception $proposedException)
+    // {
+    //     // The Twig runtime error is not very useful
+    //     if (
+    //         $proposedException instanceof \Twig\Error\RuntimeError &&
+    //         ($previousException = $proposedException->getPrevious()) &&
+    //         (!$previousException instanceof CmsException)
+    //     ) {
+    //         $proposedException = $previousException;
+    //     }
+
+    //     return parent::handleException($proposedException);
+    // }
+
+    /**
+     * Looks up an error page using the CMS route "/error". If the route does not
+     * exist, this function will use the error view found in the Cms module.
+     * @return mixed Error page contents.
+     */
+    public function handleCustomError()
+    {
+        if (Config::get('app.debug', false)) {
+            return null;
+        }
+
+        if (class_exists(Theme::class) && in_array('Cms', Config::get('cms.loadModules', []))) {
+            $theme = Theme::getActiveTheme();
+            $router = new Router($theme);
+
+            // Use the default view if no "/error" URL is found.
+            if (!$router->findByUrl('/error')) {
+                return View::make('cms::error');
+            }
+
+            // Route to the CMS error page.
+            $controller = new CmsController($theme);
+            $result = $controller->run('/error');
+        } else {
+            $result = View::make('system::error');
+        }
+
+        // Extract content from response object
+        if ($result instanceof Response) {
+            $result = $result->getContent();
+        }
+
+        return $result;
+    }
+
+    /**
+     * Displays the detailed system exception page.
+     * @return View Object containing the error page.
+     */
+    public function handleDetailedError($exception)
+    {
+        // Ensure System view path is registered
+        View::addNamespace('system', base_path().'/modules/system/views');
+
+        return View::make('system::exception', ['exception' => $exception]);
+    }
+}