test(centralui): register IEndpointVerificationService in OpcUaEndpointEditor/DataConnectionForm fixtures broken by B8 verify-button (T17)

tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/DataConnectionFormTests.cs

@@ -6,6 +6,7 @@ using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.Authorization;
 using Microsoft.Extensions.DependencyInjection;
 using NSubstitute;
+using ZB.MOM.WW.ScadaBridge.CentralUI.Services;
 using ZB.MOM.WW.ScadaBridge.Commons.Entities.Sites;
 using ZB.MOM.WW.ScadaBridge.Commons.Interfaces.Repositories;
 using DataConnectionForm = ZB.MOM.WW.ScadaBridge.CentralUI.Components.Pages.Design.DataConnectionForm;
@@ -19,6 +20,9 @@ public class DataConnectionFormTests : BunitContext
     public DataConnectionFormTests()
     {
         Services.AddSingleton(_siteRepo);
+        // The OPC UA editor rendered inside the form injects IEndpointVerificationService
+        // (B8 / T17 Verify-endpoint button); a no-op substitute satisfies the injection.
+        Services.AddSingleton<IEndpointVerificationService>(Substitute.For<IEndpointVerificationService>());
         AddTestAuth();
         var sites = new List<Site> { new("Plant-A", "plant-a") { Id = 1 } };
         _siteRepo.GetAllSitesAsync(Arg.Any<CancellationToken>())