api: make /tag/:tag_id_or_name return more than media_id

lib/PoorBooru/API/V0/Controller/Tags.pm

@@ -74,7 +74,10 @@ sub show ($self)
 	my $paged_media = $self->schema->resultset("MediaTag")
 	    ->search({ tag_id => $tag->tag_id }, $MEDIA_SEARCH_OPTS)
 	    ->page($page);
-	my @media = map { $_->media_id } $paged_media->all;
+	my @media = map +{
+		media_id      => $_->media_id,
+		seaweedfs_fid => SeaweedFS::FID->from_bin($_->seaweedfs_fid),
+	}, $paged_media->all;
 
 	return $self->render(json => {
 		id    => $tag->tag_id,