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/console/scaffold/controller/fancy/_toolbar.stub

@@ -0,0 +1,95 @@
+<div class="form-buttons loading-indicator-container">
+    <?php if ($formContext === 'create'): ?>
+        <!-- Create and new -->
+        <button
+            type="submit"
+            data-request="onSave"
+            data-request-data="new:1"
+            data-browser-validate
+            data-hotkey="ctrl+shift+s, cmd+shift+s"
+            data-load-indicator="<?= e(trans('backend::lang.form.creating')); ?>"
+            data-request-before-update="$el.trigger('unchange.oc.changeMonitor')"
+            class="btn btn-primary wn-icon-plus">
+            <?= e(trans('backend::lang.form.create_and_new')); ?>
+        </button>
+
+        <!-- Create -->
+        <button
+            type="button"
+            data-request="onSave"
+            data-browser-validate
+            data-hotkey="ctrl+s, cmd+s"
+            data-load-indicator="<?= e(trans('backend::lang.form.creating')); ?>"
+            data-request-before-update="$el.trigger('unchange.oc.changeMonitor')"
+            class="btn btn-primary wn-icon-save">
+            <?= e(trans('backend::lang.form.create')); ?>
+        </button>
+
+        <!-- Create and close -->
+        <button
+            type="button"
+            data-request="onSave"
+            data-browser-validate
+            data-request-data="close:1"
+            data-hotkey="ctrl+enter, cmd+enter"
+            data-load-indicator="<?= e(trans('backend::lang.form.creating')); ?>"
+            data-request-before-update="$el.trigger('unchange.oc.changeMonitor')"
+            class="btn btn-default wn-icon-check">
+            <?= e(trans('backend::lang.form.create_and_close')); ?>
+        </button>
+
+        <a class="btn btn-default wn-icon-ban" href="<?= $this->actionUrl('') ?>"><?= e(trans('backend::lang.form.cancel')); ?></a>
+    <?php elseif ($formContext === 'update'): ?>
+        <!-- Save -->
+        <a
+            href="javascript:;"
+            class="btn btn-primary wn-icon-save save"
+            data-request="onSave"
+            data-browser-validate
+            data-load-indicator="<?= e(trans('backend::lang.form.saving')) ?>"
+            data-request-before-update="$el.trigger('unchange.oc.changeMonitor')"
+            data-request-data="redirect:0"
+            data-hotkey="ctrl+s, cmd+s"
+        >
+            <?= e(trans('backend::lang.form.save')) ?>
+        </a>
+
+        <!-- Save and Close -->
+        <a
+            href="javascript:;"
+            class="btn btn-primary wn-icon-check save"
+            data-request-before-update="$el.trigger('unchange.oc.changeMonitor')"
+            data-request="onSave"
+            data-browser-validate
+            data-load-indicator="<?= e(trans('backend::lang.form.saving')) ?>"
+        >
+            <?= e(trans('backend::lang.form.save_and_close')) ?>
+        </a>
+
+        <?php if ($formModel->url): ?>
+            <!-- Preview -->
+            <a
+                href="<?= e($formModel->url) ?>"
+                target="_blank"
+                class="btn btn-primary wn-icon-crosshairs"
+                data-control="preview-button"
+            >
+                <?= e(trans('backend::lang.form.save_and_close')) ?>
+            </a>
+        <?php endif ?>
+
+        <a class="btn btn-default wn-icon-ban" href="<?= $this->actionUrl('') ?>"><?= e(trans('backend::lang.form.cancel')); ?></a>
+
+        <!-- Delete -->
+        <button
+            type="button"
+            class="btn btn-default empty wn-icon-trash-o"
+            data-request="onDelete"
+            title="<?= e(trans('backend::lang.form.delete')); ?>"
+            data-load-indicator="<?= e(trans('backend::lang.form.deleting')); ?>"
+            data-request-before-update="$el.trigger('unchange.oc.changeMonitor')"
+            data-request-confirm="<?= e(trans('backend::lang.form.confirm_delete')); ?>"
+            data-control="delete-button"
+        ></button>
+    <?php endif; ?>
+</div>