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/assets/ui/less/progressbar.less

@@ -0,0 +1,84 @@
+//
+// Dependencies
+// --------------------------------------------------
+
+@import "global.less";
+
+//
+// Progress bars
+// --------------------------------------------------
+
+@progress-bg:                 #d9dee0;
+@progress-bar-color:          #fff;
+
+@progress-bar-bg:             #2f99da;
+@progress-bar-success-bg:     @brand-success;
+@progress-bar-warning-bg:     @brand-warning;
+@progress-bar-danger-bg:      @brand-danger;
+@progress-bar-info-bg:        @brand-info;
+
+// Bar itself
+// -------------------------
+
+// Outer container
+.progress {
+    overflow: hidden;
+    height: 9px;
+    margin-bottom: @line-height-computed;
+    background-color: @progress-bg;
+    .border-radius(@border-radius-base);
+}
+
+// Bar of progress
+.progress-bar {
+    float: left;
+    width: 0;
+    height: 100%;
+    font-size: @font-size-small;
+    line-height: 9px;
+    color: @progress-bar-color;
+    text-align: center;
+    background-color: @progress-bar-bg;
+    .transition(width .6s ease);
+}
+
+// Call animation for the active one
+.progress.active .progress-bar {
+    #gradient.striped(rgba(255,255,255,.15); -45deg);
+    background-size: 40px 40px;
+    .animation(progress-bar-stripes 2s linear infinite);
+}
+
+// Variations
+// -------------------------
+
+.progress-bar-success {
+    background-color: @progress-bar-success-bg;
+}
+
+.progress-bar-info {
+    background-color: @progress-bar-info-bg;
+}
+
+.progress-bar-warning {
+    background-color: @progress-bar-warning-bg;
+}
+
+.progress-bar-danger {
+    background-color: @progress-bar-danger-bg;
+}
+
+// Bar animations
+// -------------------------
+
+// WebKit
+@-webkit-keyframes progress-bar-stripes {
+    from  { background-position: 0 0; }
+    to    { background-position: 40px 0; }
+}
+
+// Spec and IE10+
+@keyframes progress-bar-stripes {
+    from  { background-position: 0 0; }
+    to    { background-position: 40px 0; }
+}