fix(adminui): DriverBrowseTree uses local field, not parameter mutation

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Drivers/DriverBrowseTree.razor

@@ -37,6 +37,12 @@
     private bool _loading = true;
     private string? _error;
     private List<TreeItem>? _roots;
+    private string _selectedNodeIdLocal = "";
+
+    protected override void OnParametersSet()
+    {
+        _selectedNodeIdLocal = SelectedNodeId ?? "";
+    }
 
     protected override async Task OnInitializedAsync()
     {
@@ -76,14 +82,14 @@
 
     private async Task SelectAsync(TreeItem item)
     {
-        SelectedNodeId = item.Node.NodeId;
+        _selectedNodeIdLocal = item.Node.NodeId;
         await OnNodeSelected.InvokeAsync(item.Node);
     }
 
     private RenderFragment RenderNode(TreeItem item, int depth) => __builder =>
     {
         var indent = $"padding-left:{depth * 18}px";
-        var selectedCls = SelectedNodeId == item.Node.NodeId ? "bg-primary-subtle" : "";
+        var selectedCls = _selectedNodeIdLocal == item.Node.NodeId ? "bg-primary-subtle" : "";
         <div class="d-flex align-items-center gap-1 py-1 @selectedCls" style="@indent">
             @if (item.Node.Kind == BrowseNodeKind.Folder && item.Node.HasChildrenHint)
             {