feat(mesh): RoleParser accepts cluster-{ClusterId} roles; consolidate the driver-role literal

Phase 6 (per-cluster mesh split) needs nodes to carry a cluster-scoped
role like cluster-SITE-A; RoleParser previously rejected anything
outside the fixed admin/driver/dev set. Adds IsClusterRole/
ClusterIdFromRole plus well-known-role constants, and points the three
duplicate "driver" string literals (RedundancyStateActor,
ClusterNodeAddressReconcilerActor, ServiceCollectionExtensions) at the
new RoleParser.Driver so the value has one source, without renaming
any existing DriverRole symbol.

Claude-Session: https://claude.ai/code/session_01GASWkNEi68FSCtvr6rLoEW

src/Server/ZB.MOM.WW.OtOpcUa.ControlPlane/Fleet/ClusterNodeAddressReconcilerActor.cs

@@ -2,6 +2,7 @@ using Akka.Actor;
 using Akka.Cluster;
 using Akka.Event;
 using Microsoft.EntityFrameworkCore;
+using ZB.MOM.WW.OtOpcUa.Cluster;
 using ZB.MOM.WW.OtOpcUa.Configuration;
 
 namespace ZB.MOM.WW.OtOpcUa.ControlPlane.Fleet;
@@ -20,7 +21,7 @@ namespace ZB.MOM.WW.OtOpcUa.ControlPlane.Fleet;
 public sealed class ClusterNodeAddressReconcilerActor : ReceiveActor, IWithTimers
 {
     /// <summary>Driver role name — only members carrying it are expected to have a ClusterNode row.</summary>
-    public const string DriverRole = "driver";
+    public const string DriverRole = RoleParser.Driver;
 
     /// <summary>Collapses a burst of membership events (a rolling restart) into one reconcile.</summary>
     public static readonly TimeSpan DebounceWindow = TimeSpan.FromSeconds(2);

src/Server/ZB.MOM.WW.OtOpcUa.ControlPlane/Redundancy/RedundancyStateActor.cs

@@ -2,6 +2,7 @@ using Akka.Actor;
 using Akka.Cluster;
 using Akka.Cluster.Tools.PublishSubscribe;
 using Akka.Event;
+using ZB.MOM.WW.OtOpcUa.Cluster;
 using ZB.MOM.WW.OtOpcUa.Commons.Messages.Redundancy;
 using ZB.MOM.WW.OtOpcUa.Commons.Types;
 using CommonsRedundancyRole = ZB.MOM.WW.OtOpcUa.Commons.Messages.Redundancy.RedundancyRole;
@@ -112,7 +113,7 @@ public sealed class RedundancyStateActor : ReceiveActor, IWithTimers
     }
 
     /// <summary>The cluster role that marks a node as carrying the driver runtime.</summary>
-    public const string DriverRole = "driver";
+    public const string DriverRole = RoleParser.Driver;
 
     /// <summary>
     /// Selects the driver Primary: the <b>oldest</b> Up member carrying the <see cref="DriverRole"/>.

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

@@ -36,7 +36,7 @@ namespace ZB.MOM.WW.OtOpcUa.Runtime;
 
 public static class ServiceCollectionExtensions
 {
-    public const string DriverRole = "driver";
+    public const string DriverRole = RoleParser.Driver;
 
     public const string DriverHostActorName = "driver-host";
     public const string DbHealthProbeActorName = "db-health";