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/controllers/mailtemplates/update.php

@@ -0,0 +1,77 @@
+<?php Block::put('breadcrumb') ?>
+    <ul>
+        <li><a href="<?= Backend::url('system/mailtemplates') ?>"><?= e(trans('system::lang.mail_templates.menu_label')) ?></a></li>
+        <li><?= e(trans($this->pageTitle)) ?></li>
+    </ul>
+<?php Block::endPut() ?>
+
+<?php if (!$this->fatalError): ?>
+
+    <?= Form::open(['class'=>'layout']) ?>
+
+        <div class="layout-row min-size">
+            <div class="scoreboard">
+                <div data-control="toolbar">
+                    <div class="scoreboard-item title-value">
+                        <h4><?= e(trans('system::lang.mail_templates.template')) ?></h4>
+                        <p><?= e($formModel->code) ?></p>
+                    </div>
+                </div>
+            </div>
+        </div>
+
+        <div class="layout-row">
+            <?= $this->formRender() ?>
+        </div>
+
+        <div class="form-buttons p-t">
+            <div class="loading-indicator-container">
+                <button
+                    type="submit"
+                    data-request="onSave"
+                    data-browser-validate
+                    data-request-data="redirect:0"
+                    data-hotkey="ctrl+s, cmd+s"
+                    data-load-indicator="<?= e(trans('system::lang.mail_templates.saving')) ?>"
+                    class="btn btn-primary">
+                    <?= e(trans('backend::lang.form.save')) ?>
+                </button>
+                <button
+                    type="button"
+                    data-request="onSave"
+                    data-browser-validate
+                    data-request-data="close:1"
+                    data-hotkey="ctrl+enter, cmd+enter"
+                    data-load-indicator="<?= e(trans('system::lang.mail_templates.saving')) ?>"
+                    class="btn btn-default">
+                    <?= e(trans('backend::lang.form.save_and_close')) ?>
+                </button>
+                <button
+                    type="button"
+                    data-request="onTest"
+                    data-load-indicator="<?= e(trans('system::lang.mail_templates.sending')) ?>"
+                    data-request-confirm="<?= e(trans('system::lang.mail_templates.test_confirm', [ 'email' => e(BackendAuth::getUser()->email)])) ?>"
+                    class="btn btn-info">
+                    <?= e(trans('system::lang.mail_templates.test_send')) ?>
+                </button>
+                <button
+                    type="button"
+                    class="wn-icon-trash-o btn-icon danger pull-right"
+                    data-request="onDelete"
+                    data-load-indicator="<?= e(trans('system::lang.mail_templates.deleting')) ?>"
+                    data-request-confirm="<?= e(trans('system::lang.mail_templates.delete_confirm')) ?>">
+                </button>
+                <span class="btn-text">
+                    <?= e(trans('backend::lang.form.or')) ?> <a href="<?= Backend::url('system/mailtemplates') ?>"><?= e(trans('backend::lang.form.cancel')) ?></a>
+                </span>
+            </div>
+        </div>
+
+    <?= Form::close() ?>
+
+<?php else: ?>
+
+    <p class="flash-message static error"><?= e(trans($this->fatalError)) ?></p>
+    <p><a href="<?= Backend::url('system/mailtemplates') ?>" class="btn btn-default"><?= e(trans('system::lang.mail_templates.return')) ?></a></p>
+
+<?php endif ?>