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/controllers/users/_list_toolbar.php

@@ -0,0 +1,29 @@
+<div data-control="toolbar">
+    <a href="<?= Backend::url('backend/users/create') ?>" class="btn btn-primary wn-icon-plus">
+        <?= e(trans('backend::lang.user.new')) ?>
+    </a>
+    <?php if ($this->user->isSuperUser()): ?>
+        <a href="<?= Backend::url('backend/userroles') ?>" class="btn btn-default wn-icon-address-card">
+            <?= e(trans('backend::lang.user.role.list_title')) ?>
+        </a>
+    <?php endif ?>
+    <a href="<?= Backend::url('backend/usergroups') ?>" class="btn btn-default wn-icon-group">
+        <?= e(trans('backend::lang.user.group.list_title')) ?>
+    </a>
+    <?php /* @todo
+    <div class="btn-group">
+        <button
+            class="btn btn-default wn-icon-ban-circle"
+            disabled="disabled"
+            data-trigger-action="enable"
+            data-trigger=".control-list input[type=checkbox]"
+            data-trigger-condition="checked">Ban</button>
+        <button
+            class="btn btn-default wn-icon-trash-o"
+            disabled="disabled"
+            data-trigger-action="enable"
+            data-trigger=".control-list input[type=checkbox]"
+            data-trigger-condition="checked">Delete</button>
+    </div>
+    */ ?>
+</div>