nostr.build responds with a 404 when i try to delete files. i've confirmed the file hash matches the file hash in the success response. here's an example URL that's returning a 404 when i send a delete request to it https://nostr.build/api/v2/nip96/upload/2f97733887b45a6a423b6eb9abd2587c5473c2bfaa8f894dba48939fadbd93d2