feat(site): replicate config by id + standby fetch (kills the intra-site frame trap)

src/ZB.MOM.WW.ScadaBridge.Commons/Messages/Deployment/DeployInstanceCommand.cs

@@ -1,9 +1,22 @@
 namespace ZB.MOM.WW.ScadaBridge.Commons.Messages.Deployment;
 
+/// <summary>
+/// Internal site-side apply DTO for a single instance deployment. (Its cross-cluster wire
+/// use is being retired; notify-and-fetch now moves only ids over the wire.)
+/// </summary>
+/// <remarks>
+/// <paramref name="CentralFetchBaseUrl"/> and <paramref name="FetchToken"/> are optional and
+/// carry the central fetch coordinates down the in-process apply path so that
+/// <c>ApplyDeployment</c> can replicate an id-only notify-and-fetch message to the standby
+/// node (instead of the full config JSON, which tripped the 128 KB intra-site frame trap).
+/// They are populated on the notify-and-fetch path; all other construction sites omit them.
+/// </remarks>
 public record DeployInstanceCommand(
     string DeploymentId,
     string InstanceUniqueName,
     string RevisionHash,
     string FlattenedConfigurationJson,
     string DeployedBy,
-    DateTimeOffset Timestamp);
+    DateTimeOffset Timestamp,
+    string? CentralFetchBaseUrl = null,
+    string? FetchToken = null);