Yes. You did not have enough material to force mate. That is a draw under the rules here.
King and bishop - "enough material to force mate"
Please do show the sequence to force mate with only a bishop and a king
Yes under FIDE rules they'd have won but precisely not because of forced mate.
Not forced mate of course, what i wanterd to say is that checkmate is possible.
FYI the game said draw by timeout…