API return original filename when fetching photos or sounds

Thanks! Indeed there are several more useful discussions linked from https://forum.inaturalist.org/t/way-to-get-uploaded-picture-original-file-name-via-api/50645/4 :

It looks like this is mainly blocked on someone to implement the change, which I’m willing to do as long as there’s someone who can review the PRs and advise (as I’m unfamiliar with this tech stack).

S