fix: also check base key in promoted widget indicator lookup

The isPromotedByAny check was only looking up the key with
disambiguatingSourceNodeId, missing promotions stored without one.
Now tries both with and without the disambiguating segment so
nested subgraph promotions are detected regardless of storage shape.

Fixes #10612

src/renderer/extensions/vueNodes/components/NodeWidgets.vue

@@ -390,17 +390,23 @@ const processedWidgets = computed((): ProcessedWidget[] => {
       ? { ...mergedOptions, disabled: true }
       : mergedOptions
 
-    const borderStyle =
+    const sourceWidgetName = widget.storeName ?? widget.name
+    const isPromoted =
       graphId &&
-      promotionStore.isPromotedByAny(graphId, {
+      (promotionStore.isPromotedByAny(graphId, {
         sourceNodeId: hostNodeId,
-        sourceWidgetName: widget.storeName ?? widget.name,
+        sourceWidgetName,
         disambiguatingSourceNodeId: promotionSourceNodeId
-      })
-        ? 'ring ring-component-node-widget-promoted'
-        : mergedOptions.advanced
-          ? 'ring ring-component-node-widget-advanced'
-          : undefined
+      }) ||
+        promotionStore.isPromotedByAny(graphId, {
+          sourceNodeId: hostNodeId,
+          sourceWidgetName
+        }))
+    const borderStyle = isPromoted
+      ? 'ring ring-component-node-widget-promoted'
+      : mergedOptions.advanced
+        ? 'ring ring-component-node-widget-advanced'
+        : undefined
 
     const linkedUpstream: LinkedUpstreamInfo | undefined =
       slotMetadata?.linked && slotMetadata.originNodeId