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/widgets/form/partials/_field_range.php

@@ -0,0 +1,40 @@
+<!-- Range -->
+<?php if ($this->previewMode): ?>
+    <span class="form-control"><?= isset($field->value) ? e($field->value) : '&nbsp;' ?></span>
+<?php else: ?>
+    <?php
+    $min = $field->config['min'] ?? 0;
+    $max = $field->config['max'] ?? 100;
+    $step = $field->config['step'] ?? 1;
+    $value = $field->value;
+    if ($min > $max) {
+        $min = $max - $step;
+    }
+    if (is_null($value)) {
+        $value = ($min + $max) / 2;
+    }
+    ?>
+
+    <input
+        type="range"
+        step="<?= $step ?>"
+        name="<?= $field->getName() ?>"
+        id="<?= $field->getId() ?>"
+        value="<?= e($value) ?>"
+        min="<?= $min ?>"
+        max="<?= $max ?>"
+        <?= $field->getAttributes() ?>
+    />
+    <span style="position: absolute; transform: translateX(-50%)"></span>
+    <script>
+        (() => {
+            const input = document.getElementById("<?= $field->getId() ?>");
+            input.addEventListener("input", function () {
+                this.nextElementSibling.innerHTML = this.value;
+                var pos = ((this.value - <?= $min ?>) / (<?= $max ?> - <?= $min ?>) * 100);
+                this.nextElementSibling.style.left = `calc(${pos}% + ${8 - pos * 0.15}px)`;
+            });
+            input.dispatchEvent(new Event('input'));
+        })();
+    </script>
+<?php endif; ?>