Merge pull request 'Phase 2 PR 8 — gateway-level host-status push from MxAccessGalaxyBackend' (#7) from phase-2-pr8-alarms-hoststatus into v2

src/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Host/Backend/MxAccess/MxAccessClient.cs

@@ -67,6 +67,13 @@ public sealed class MxAccessClient : IDisposable
     public int SubscriptionCount => _subscriptions.Count;
     public int ReconnectCount => _reconnectCount;
 
+    /// <summary>
+    ///     Wonderware client identity used when registering with the LMXProxyServer. Surfaced so
+    ///     <see cref="Backend.MxAccessGalaxyBackend"/> can tag its <c>OnHostStatusChanged</c> IPC
+    ///     pushes with a stable gateway name per PR 8.
+    /// </summary>
+    public string ClientName => _clientName;
+
     /// <summary>Connects on the STA thread. Idempotent. Starts the reconnect monitor on first call.</summary>
     public async Task<int> ConnectAsync()
     {