Add onboarding weather and template gradients

src/player/public/js/player-page-rendering.js

@@ -782,6 +782,7 @@ function getTemplateLayout(template) {
     canvasHeight: canvasSize.height,
     background: template.background_image_path ? '<img class="template-background" src="' + escapeHtml(template.background_image_path) + '" alt="" />' : '',
     backgroundColor: template.background_color || '#111111',
+    backgroundGradient: template.background_gradient || '',
     regions: regions
   };
 
@@ -790,17 +791,31 @@ function getTemplateLayout(template) {
 }
 
 // Build a dark backdrop style for template and media canvases.
-function buildBackdropStyle(backgroundColor, backgroundImagePath) {
+function buildBackdropStyle(backgroundColor, backgroundImagePath, backgroundGradient) {
   var color = String(backgroundColor || '#111111').trim() || '#111111';
   var style = 'background-color:' + escapeHtml(color) + ';';
+  var gradient = '';
+  try {
+    var gradientData = typeof backgroundGradient === 'string' ? JSON.parse(backgroundGradient) : backgroundGradient;
+    if (gradientData && gradientData.type === 'linear' && Array.isArray(gradientData.colors) && gradientData.colors.length >= 2) {
+      var stops = Array.isArray(gradientData.stops) ? gradientData.stops : (gradientData.colors || []).map(function (color, index, colors) { return { color: color, position: colors.length > 1 ? Math.round(index * 100 / (colors.length - 1)) : 0 }; });
+      stops = stops.filter(function (stop) { return stop && /^#[0-9a-fA-F]{3,8}$/.test(String(stop.color || '').trim()); }).slice(0, 12);
+      if (stops.length >= 2) {
+        var angle = Number(gradientData.angle);
+        gradient = 'linear-gradient(' + (Number.isFinite(angle) ? Math.max(0, Math.min(360, angle)) : 90) + 'deg,' + stops.map(function (stop) { return stop.color + ' ' + Math.max(0, Math.min(100, Number(stop.position) || 0)) + '%'; }).join(',') + ')';
+      }
+    }
+  } catch (_error) {
+    gradient = '';
+  }
 
   if (backgroundImagePath) {
-    style += 'background-image:url("' + escapeHtml(backgroundImagePath) + '");';
-    style += 'background-position:center;background-size:contain;background-repeat:no-repeat;';
+    style += 'background-image:url("' + escapeHtml(backgroundImagePath) + '")' + (gradient ? ',' + gradient : '') + ';';
+    style += 'background-position:center,center;background-size:contain,cover;background-repeat:no-repeat,no-repeat;';
     return style;
   }
 
-  style += 'background-image:none;background-position:center;background-size:cover;background-repeat:no-repeat;';
+  style += 'background-image:' + (gradient || 'none') + ';background-position:center;background-size:cover;background-repeat:no-repeat;';
   return style;
 }
 
@@ -876,7 +891,7 @@ function renderTemplateSlideMarkup(slide) {
       animationConfig: normalizePlayerAnimationConfig(region.animationJson)
     });
   }).join('') : '';
-  const stageStyle = layout ? buildBackdropStyle(layout.backgroundColor || '#111111', template.background_image_path) : '';
+  const stageStyle = layout ? buildBackdropStyle(layout.backgroundColor || '#111111', template.background_image_path, layout.backgroundGradient) : '';
   if (layout) {
     setPlayerCanvasDimensions(layout.canvasWidth, layout.canvasHeight);
   }