feat: listInvocationsFull — monitor payload incl. detachedEnabled

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>

lib/src/hub_client.dart

@@ -117,6 +117,7 @@ typedef SubmitResponse = pb.SubmitResponse;
 typedef SubmitStreamEvent = pb.SubmitStreamEvent;
 typedef InvocationStatus = pb.InvocationStatus;
 typedef InvocationEntry = pb.InvocationEntry;
+typedef InvocationList = pb.InvocationList;
 
 /// Typed client for the F∆I Hub gRPC surface. Construct once,
 /// reuse for the process lifetime, call [close] on shutdown.
@@ -958,6 +959,12 @@ class HubClient {
     return r.invocations;
   }
 
+  /// The full detached-runs monitor payload: tracked invocations
+  /// plus [InvocationList.detachedEnabled], so a UI can distinguish
+  /// "feature off" from "on, but no runs yet".
+  Future<InvocationList> listInvocationsFull() =>
+      _hub.listInvocations(Empty());
+
   pb.SubmitRequest _buildSubmitRequest({
     required String flowYaml,
     required Map<String, String> textInputs,