Yes, StreetComplete would like to know what kind of building it is,  usually the more specific the better, e.g. detached house, school, church, ...., but you can not map it as Station de sauvetage in StreetComplete (as far as I know) and that is why I made a note.
I named it now with changeset https://www.openstreetmap.org/changeset/139865175. But if somebody knows what kind of specific building tag can be used for Station de sauvetage, please add this. Thanks!