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/formwidgets/datepicker/partials/_datepicker.php

@@ -0,0 +1,79 @@
+<?php if (!empty($error)): ?>
+    <p class="flash-message static error">
+        <?= e($error); ?></p>
+    </p>
+
+    <?php if ($this->previewMode): ?>
+        <span class="form-control"><?= $value ? e($value) : '&nbsp;' ?></span>
+    <?php else: ?>
+        <input
+            type="text"
+            name="<?= $field->getName() ?>"
+            id="<?= $field->getId() ?>"
+            value="<?= e($value) ?>"
+            class="form-control"
+            autocomplete="off"
+        />
+    <?php endif ?>
+    <?php return; ?>
+<?php endif; ?>
+<?php if ($this->previewMode): ?>
+    <div class="form-control"><?= Backend::dateTime($value, [
+        'format' => $format,
+        'formatAlias' => $formatAlias,
+        'defaultValue' => $value
+    ]) ?></div>
+<?php else: ?>
+    <div
+        id="<?= $this->getId() ?>"
+        class="field-datepicker"
+        data-control="datepicker"
+        data-mode="<?= $mode ?>"
+        data-show-week-number="<?= $showWeekNumber ?>"
+        <?php if ($formatMoment): ?>
+            data-format="<?= $formatMoment ?>"
+        <?php endif ?>
+        <?php if ($minDate): ?>
+            data-min-date="<?= $minDate ?>"
+        <?php endif ?>
+        <?php if ($maxDate): ?>
+            data-max-date="<?= $maxDate ?>"
+        <?php endif ?>
+        <?php if ($yearRange): ?>
+            data-year-range="<?= $yearRange ?>"
+        <?php endif ?>
+        <?php if ($firstDay): ?>
+            data-first-day="<?= $firstDay ?>"
+        <?php endif ?>
+        <?php if ($ignoreTimezone): ?>
+            data-ignore-timezone
+        <?php endif ?>
+    >
+
+        <?php if ($mode == 'date'): ?>
+            <?= $this->makePartial('picker_date') ?>
+        <?php elseif ($mode == 'datetime'): ?>
+            <div class="row">
+                <div class="col-md-7">
+                    <?= $this->makePartial('picker_date') ?>
+                </div>
+                <div class="col-md-5">
+                    <?= $this->makePartial('picker_time') ?>
+                </div>
+            </div>
+        <?php elseif ($mode == 'time'): ?>
+            <?= $this->makePartial('picker_time') ?>
+        <?php endif ?>
+
+        <!-- Data locker -->
+        <input
+            type="hidden"
+            name="<?= $field->getName() ?>"
+            id="<?= $field->getId() ?>"
+            value="<?= e($value) ?>"
+            data-datetime-value
+            />
+
+    </div>
+
+<?php endif ?>

modules/backend/formwidgets/datepicker/partials/_picker_date.php

@@ -0,0 +1,11 @@
+<!-- Date -->
+<div class="input-with-icon right-align">
+    <i class="icon icon-calendar-o"></i>
+    <input
+        type="text"
+        id="<?= $this->getId('date') ?>"
+        class="form-control align-right"
+        autocomplete="off"
+        <?= $field->getAttributes() ?>
+        data-datepicker />
+</div>

modules/backend/formwidgets/datepicker/partials/_picker_time.php

@@ -0,0 +1,11 @@
+<!-- Time -->
+<div class="input-with-icon right-align">
+    <i class="icon icon-clock-o"></i>
+    <input
+        type="text"
+        id="<?= $this->getId('time') ?>"
+        class="form-control align-right"
+        autocomplete="off"
+        <?= $field->getAttributes() ?>
+        data-timepicker />
+</div>