fix: bring node to front when selected

Selection now automatically brings the node to front (unless pinned),
ensuring selected nodes are always visible above other nodes.

src/renderer/extensions/vueNodes/composables/useNodeEventHandlers.ts

@@ -134,13 +134,21 @@ function useNodeEventHandlersIndividual() {
       canvasStore.canvas.deselectAll()
       canvasStore.canvas.select(node)
       canvasStore.updateSelectedItems()
+      // Bring node to front when selected (unless pinned)
+      if (!node.flags?.pinned) {
+        bringNodeToFront(nodeId)
+      }
       return
     }
 
     if (node.selected) {
       canvasStore.canvas.deselect(node)
     } else {
       canvasStore.canvas.select(node)
+      // Bring node to front when selected (unless pinned)
+      if (!node.flags?.pinned) {
+        bringNodeToFront(nodeId)
+      }
     }
 
     canvasStore.updateSelectedItems()