refactor(driver-pages): address post-review follow-ups

- DriverInstanceSpec carries ClusterId from the deployment artifact;
  DriverHostActor threads the real cluster identity into
  DriverInstanceActor instead of the local NodeId. Old pre-PR
  artifacts without a ClusterId field fall back to the NodeId so
  in-flight deployments keep working.
- DriverHostActor.ChildEntry holds the full DriverInstanceSpec
  (was only carrying DriverType + LastConfigJson). Restart respawns
  preserve RowId, Name, Enabled, ClusterId — no placeholder values.
- Drop the unnecessary _faultLock on DriverInstanceActor — every
  read/write site runs inside an Akka message handler which is
  single-threaded per actor instance.
- DriverStatusPanel.DisposeAsync awaits Timer.DisposeAsync so an
  in-flight 5s tick can't invoke StateHasChanged on a component
  whose hub has already been torn down.

src/Server/ZB.MOM.WW.OtOpcUa.Runtime/Drivers/DeploymentArtifact.cs

@@ -15,7 +15,8 @@ public sealed record DriverInstanceSpec(
     string Name,
     string DriverType,
     bool Enabled,
-    string DriverConfig);
+    string DriverConfig,
+    string? ClusterId = null);
 
 public static class DeploymentArtifact
 {
@@ -66,6 +67,7 @@ public static class DeploymentArtifact
         var type = el.TryGetProperty("DriverType", out var typeEl) ? typeEl.GetString() : null;
         var enabled = !el.TryGetProperty("Enabled", out var enEl) || enEl.GetBoolean();
         var config = el.TryGetProperty("DriverConfig", out var cfgEl) ? cfgEl.GetString() : null;
+        var clusterId = el.TryGetProperty("ClusterId", out var clEl) ? clEl.GetString() : null;
 
         if (string.IsNullOrWhiteSpace(id) || string.IsNullOrWhiteSpace(type)) return null;
 
@@ -75,7 +77,8 @@ public static class DeploymentArtifact
             Name: name ?? id!,
             DriverType: type!,
             Enabled: enabled,
-            DriverConfig: config ?? "{}");
+            DriverConfig: config ?? "{}",
+            ClusterId: clusterId);
     }
 
     /// <summary>