fix(cloud): refresh ports when group expands

Author: austinywang

Sources/Cloud/CloudTreeNode.swift

@@ -96,7 +96,8 @@ final class CloudTreeNode: NSObject {
         case .placeholder: return "placeholder"
         }
     }
-
+    /// Port discovery is demand-driven when the user opens the Ports group.
+    var refreshesOnExpansion: Bool { if case .portsGroup = kind { true } else { false } }
     /// Copies the values of an equal-structure rebuild into this node (NSOutlineView keeps
     /// the object it was handed; updating it in place keeps rows, expansion and the
     /// selection untouched). Children are adopted pairwise — callers guarantee the
@@ -108,7 +109,6 @@ final class CloudTreeNode: NSObject {
             child.adopt(from: replacement)
         }
     }
-
     var machine: SurfaceMachineID {
         switch kind {
         case .machine(let snapshot, _): return .cloud(snapshot.id)

Sources/Cloud/CloudTreeOutlineView.swift

@@ -369,7 +369,6 @@ struct CloudTreeOutlineView: NSViewRepresentable {
         func outlineView(_ outlineView: NSOutlineView, shouldSelectItem item: Any) -> Bool {
             true
         }
-
         func outlineViewSelectionDidChange(_ notification: Notification) {
             guard !isUpdatingProgrammatically, let outlineView else { return }
             selectedNodeID = outlineView.selectedRow >= 0
@@ -380,6 +379,7 @@ struct CloudTreeOutlineView: NSViewRepresentable {
         func outlineViewItemDidExpand(_ notification: Notification) {
             guard !isUpdatingProgrammatically, let node = notification.userInfo?["NSObject"] as? CloudTreeNode else { return }
             expansionStore.setExpanded(true, node: node)
+            if node.refreshesOnExpansion { nodeActions.refresh() }
         }
 
         func outlineViewItemDidCollapse(_ notification: Notification) {