fix(adminui,cli): /raw device-name placeholder + no-prerender tree, CLI read prints Bad status (#577)

Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe

src/Client/ZB.MOM.WW.OtOpcUa.Client.CLI/Commands/ReadCommand.cs

@@ -45,7 +45,23 @@ public class ReadCommand : CommandBase
             var ct = console.RegisterCancellationHandler();
             (service, _) = await CreateServiceAndConnectAsync(ct);
 
-            var value = await service.ReadValueAsync(nodeId, ct);
+            DataValue value;
+            try
+            {
+                value = await service.ReadValueAsync(nodeId, ct);
+            }
+            catch (ServiceResultException ex) when (ex.StatusCode != StatusCodes.BadSessionIdInvalid
+                                                    && ex.StatusCode != StatusCodes.BadConnectionClosed
+                                                    && ex.StatusCode != StatusCodes.BadSecureChannelClosed)
+            {
+                // The SDK's Session.ReadValue surfaces a Bad node status (BadNodeIdUnknown,
+                // BadUserAccessDenied, ...) as an exception. A read command's job is to REPORT that status,
+                // not crash with a stack trace (#577) — session-level failures still propagate.
+                await console.Output.WriteLineAsync($"Node:        {NodeId}");
+                await console.Output.WriteLineAsync($"Value:       ");
+                await console.Output.WriteLineAsync($"Status:      {(StatusCode)ex.StatusCode} ({StatusCodes.GetBrowseName(ex.StatusCode)})");
+                return;
+            }
 
             await console.Output.WriteLineAsync($"Node:        {NodeId}");
             await console.Output.WriteLineAsync($"Value:       {value.Value}");

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Pages/Raw/GlobalRaw.razor

@@ -1,6 +1,10 @@
 @page "/raw"
 @attribute [Authorize(Policy = AdminUiPolicies.ConfigEditor)]
-@rendermode RenderMode.InteractiveServer
+@* prerender: false (#577 "first tree click ignored"): with prerender on, the server-rendered tree is shown
+   before the circuit attaches, so a click on its (handler-less) twists is silently dropped, and the
+   component then re-runs OnInitializedAsync and swaps in a second, freshly loaded node set. The tree
+   is the only content here and needs the circuit anyway, so render it once, interactively. *@
+@rendermode @(new InteractiveServerRenderMode(prerender: false))
 @using ZB.MOM.WW.OtOpcUa.AdminUI.Uns
 @using ZB.MOM.WW.OtOpcUa.AdminUI.Components.Shared.Raw
 @inject IRawTreeService Svc

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

@@ -28,7 +28,7 @@
                         <div class="row g-3 mb-2">
                             <div class="col-md-6">
                                 <label class="form-label">Device name</label>
-                                <input class="form-control form-control-sm mono" @bind="_name" placeholder="Device1" />
+                                <input class="form-control form-control-sm mono" @bind="_name" placeholder="e.g. plc1" />
                                 <div class="form-text">A RawPath segment — letters, digits, dash, underscore.</div>
                             </div>
                             <div class="col-md-3">
@@ -145,7 +145,7 @@
         {
             _resolvedDriverInstanceId = DriverInstanceId;
             _driverType = DriverType ?? "";
-            _name = "Device1";
+            _name = ""; // placeholder only: a pre-filled value made typing append to it (#577); the name is validated on save
             _enabled = true;
             _deviceConfigJson = "{}";
             _rowVersion = [];