Extended tentacle capabilities a bit.

internal/app/tentacle_management.go

@@ -520,6 +520,7 @@ func (runtime *tentacleRuntime) run_managed(ctx context.Context) error {
 					case <-ctx.Done():
 					}
 					runtime.output.RetireRevoked()
+					runtime.signal_extensions()
 					notify()
 					<-session.Done()
 					notify()