refactor(browse): rename BrowseOpcUaNode* to protocol-agnostic BrowseNode*

Renames BrowseOpcUaNodeCommand/Result -> BrowseNodeCommand/Result and
CommunicationService.BrowseOpcUaNodeAsync -> BrowseNodeAsync across Commons,
Communication, SiteRuntime, DCL actors, and CentralUI. Wire manifest name
follows (BrowseOpcUaNode -> BrowseNode). Browse regression tests green.

src/ZB.MOM.WW.ScadaBridge.CentralUI/ServiceCollectionExtensions.cs

@@ -50,7 +50,7 @@ public static class ServiceCollectionExtensions
         // Backs the Audit Log page's Export button via GET /api/centralui/audit/export.
         services.AddScoped<IAuditLogExportService, AuditLogExportService>();
 
-        // OPC UA Tag Browser (Task 14): facade over CommunicationService.BrowseOpcUaNodeAsync
+        // OPC UA Tag Browser (Task 14): facade over CommunicationService.BrowseNodeAsync
         // that enforces the CentralUI-side Design-role trust boundary and translates
         // transport failures into typed BrowseFailure results for the dialog.
         services.AddScoped<IOpcUaBrowseService, OpcUaBrowseService>();

src/ZB.MOM.WW.ScadaBridge.CentralUI/Services/IOpcUaBrowseService.cs

@@ -6,7 +6,7 @@ namespace ZB.MOM.WW.ScadaBridge.CentralUI.Services;
 /// CentralUI facade over the central-to-site OPC UA browse command. Backs the
 /// OPC UA Tag Browser dialog: each tree expansion / manual node-id paste calls
 /// <see cref="BrowseChildrenAsync"/>, which forwards a
-/// <see cref="BrowseOpcUaNodeCommand"/> to the owning site via
+/// <see cref="BrowseNodeCommand"/> to the owning site via
 /// <see cref="ZB.MOM.WW.ScadaBridge.Communication.CommunicationService"/>.
 /// </summary>
 /// <remarks>
@@ -29,7 +29,7 @@ public interface IOpcUaBrowseService
     /// <param name="connectionName">Name of the site-local data connection to browse against — the site's <c>DataConnectionManagerActor</c> indexes its children by name.</param>
     /// <param name="parentNodeId">Node to browse, or <c>null</c> to browse from the server root.</param>
     /// <param name="cancellationToken">Cancellation token.</param>
-    Task<BrowseOpcUaNodeResult> BrowseChildrenAsync(
+    Task<BrowseNodeResult> BrowseChildrenAsync(
         string siteId,
         string connectionName,
         string? parentNodeId,

src/ZB.MOM.WW.ScadaBridge.CentralUI/Services/OpcUaBrowseService.cs

@@ -8,7 +8,7 @@ namespace ZB.MOM.WW.ScadaBridge.CentralUI.Services;
 
 /// <summary>
 /// Default <see cref="IOpcUaBrowseService"/> implementation — a thin facade over
-/// <see cref="CommunicationService.BrowseOpcUaNodeAsync"/> that enforces the
+/// <see cref="CommunicationService.BrowseNodeAsync"/> that enforces the
 /// CentralUI-side <c>Design</c>-role trust boundary and translates transport
 /// exceptions into a typed <see cref="BrowseFailure"/> result.
 /// </summary>
@@ -36,7 +36,7 @@ public sealed class OpcUaBrowseService : IOpcUaBrowseService
     }
 
     /// <inheritdoc/>
-    public async Task<BrowseOpcUaNodeResult> BrowseChildrenAsync(
+    public async Task<BrowseNodeResult> BrowseChildrenAsync(
         string siteId,
         string connectionName,
         string? parentNodeId,
@@ -47,7 +47,7 @@ public sealed class OpcUaBrowseService : IOpcUaBrowseService
         var state = await _auth.GetAuthenticationStateAsync();
         if (!state.User.HasClaim(JwtTokenService.RoleClaimType, "Design"))
         {
-            return new BrowseOpcUaNodeResult(
+            return new BrowseNodeResult(
                 Array.Empty<BrowseNode>(),
                 Truncated: false,
                 new BrowseFailure(BrowseFailureKind.ServerError, "Not authorized."));
@@ -55,9 +55,9 @@ public sealed class OpcUaBrowseService : IOpcUaBrowseService
 
         try
         {
-            return await _communication.BrowseOpcUaNodeAsync(
+            return await _communication.BrowseNodeAsync(
                 siteId,
-                new BrowseOpcUaNodeCommand(connectionName, parentNodeId),
+                new BrowseNodeCommand(connectionName, parentNodeId),
                 cancellationToken);
         }
         catch (TimeoutException ex)
@@ -65,7 +65,7 @@ public sealed class OpcUaBrowseService : IOpcUaBrowseService
             // Akka Ask timed out — the site (or its OPC UA session) didn't answer
             // within CommunicationOptions.QueryTimeout. Surface as a typed
             // Timeout failure so the dialog can render an inline banner.
-            return new BrowseOpcUaNodeResult(
+            return new BrowseNodeResult(
                 Array.Empty<BrowseNode>(),
                 Truncated: false,
                 new BrowseFailure(BrowseFailureKind.Timeout, ex.Message));
@@ -80,7 +80,7 @@ public sealed class OpcUaBrowseService : IOpcUaBrowseService
         {
             // Any other transport / serialization failure: keep the dialog
             // alive and let the user fall back to manual node-id paste.
-            return new BrowseOpcUaNodeResult(
+            return new BrowseNodeResult(
                 Array.Empty<BrowseNode>(),
                 Truncated: false,
                 new BrowseFailure(BrowseFailureKind.ServerError, ex.Message));