feat(adminops): IDriverProbe + TestDriverConnect actor handler

- IDriverProbe abstraction in Core.Abstractions; one impl per driver
  type, resolved by DriverType string. Phase 7.3 + 7.4 add concrete
  probes for the 9 supported driver types.
- TestDriverConnect / TestDriverConnectResult messages.
- AdminOperationsActor.HandleTestDriverConnectAsync looks up the probe
  by DriverType, runs it with a [1,60]s clamped timeout, and returns
  success/latency or failure/message. Probes that throw or time out
  surface as soft failures.

src/Server/ZB.MOM.WW.OtOpcUa.ControlPlane/ServiceCollectionExtensions.cs

@@ -9,6 +9,7 @@ using ZB.MOM.WW.OtOpcUa.ControlPlane.Audit;
 using ZB.MOM.WW.OtOpcUa.ControlPlane.Coordinators;
 using ZB.MOM.WW.OtOpcUa.ControlPlane.Fleet;
 using ZB.MOM.WW.OtOpcUa.ControlPlane.Redundancy;
+using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
 
 namespace ZB.MOM.WW.OtOpcUa.ControlPlane;
 
@@ -59,7 +60,8 @@ public static class ServiceCollectionExtensions
             {
                 var dbFactory = resolver.GetService<IDbContextFactory<OtOpcUaConfigDbContext>>();
                 var coordinator = registry.Get<ConfigPublishCoordinatorKey>();
-                return AdminOperationsActor.Props(dbFactory, coordinator);
+                var probes = resolver.GetService<IEnumerable<IDriverProbe>>() ?? Enumerable.Empty<IDriverProbe>();
+                return AdminOperationsActor.Props(dbFactory, coordinator, probes);
             },
             singletonOptions);