If you've done a run of it I would recommend to send a link to the video of your run here, and moderators might add your run to the leaderboards.
It seems like (based on something Zoekay said in the AC discord) he wasn't planning on adding it as a standalone category. I would join the discord and talk to him about it.
I doesnt know too much about this game, but if there are more than 1 Golden thing, I just know that exactly the axe is very random In all case, nice Maybe "All golds" or something like that In all case, probably there are not more than 1, so ignore me :) xdxd
Previously the rule said: "Timer ends on the regaining control of your character after talking to Tom Nook and paying off your first debt."
This was a little ambiguous, as some runs stopped the timer when the final text box cleared:
Others waited until the camera fa