Very well executed project with some polish. I'm also using a Wacom tablet + Krita (you can check the starting storyboard of our game) but I'm just beginning to. It is inspiring to see how much art you managed to do in the short time.
Interesting story description but I guess for the jam there was not enough time to translate it into the mechanics... There's nothing currently that makes Cog feel three generations behind...
One suggestion - make the button "Press on without resting" style the same as the other buttons. Right now its easy to miss... Or remove it completely.
It would be good to include some logic to calculate how dense encounters and rests should be because one run there were encounter after encounter - impossible to survive.
It does make sense that the forge is only available in calm spaces. However gameplay wise whatever parts are scavenged - without the forge they are useless. The results is a reward which can't be used. That can be disappointing.
Good luck!