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/partials/_settings_menu_items.php

@@ -0,0 +1,33 @@
+<?php
+$context = System\Classes\SettingsManager::instance()->getContext();
+
+$collapsedGroups = explode(
+    '|',
+    isset($_COOKIE['sidenav_treegroupStatus']) ? $_COOKIE['sidenav_treegroupStatus'] : null
+);
+?>
+
+<ul class="top-level">
+    <?php foreach ($items as $category => $items):
+        $collapsed = in_array($category, $collapsedGroups);
+        ?>
+
+        <li data-group-code="<?= e($category) ?>" <?= $collapsed ? 'data-status="collapsed"' : null ?>>
+            <div class="group">
+                <h3><?= e(trans($category)) ?></h3>
+            </div>
+
+            <ul <?= $collapsed ? 'style="overflow: visible; height: 0px; display: none;"' : null ?>>
+                <?php foreach ($items as $item): ?>
+                    <li class="<?= strtolower($item->owner) == $context->owner && strtolower($item->code) == $context->itemCode ? 'active' : false ?>" data-keywords="<?= e(trans($item->keywords)) ?>">
+                        <a href="<?= $item->url ?>" ontouchstart="">
+                            <i class="<?= $item->icon ?>"></i>
+                            <span class="header"><?= e(trans($item->label)) ?></span>
+                            <span class="description"><?= e(trans($item->description)) ?></span>
+                        </a>
+                    </li>
+                <?php endforeach ?>
+            </ul>
+        </li>
+    <?php endforeach ?>
+</ul>