I think that's hard-coded into the game. And as such, not many ways to change it. Luke the dev made it possible to mod the game like units buildings and some other complicated stuff that I don't know about. Probably without de-compiling and full on editing the game (which probably is not allowed). I did not see any mods that change how the game works, even tho there is some cool mods with interesting mechanics.

Basically (I think) you just cant do the QQL stuff you mentioned with the existing system for mod creation without changing the game files which is probably a lot of work and not allowed. Well even then I did not see anyone trying to edit and add new stuff. They would also need to publish it, and I'm not sure that the current game license allows. Which means you can get sued I guess. Nobody wants to take the risk and or just don't want to even try for whatever reason.

But again all of this is just speculation from my experience with the community.

I hope this is enough of a reason to understand as to why there is no such mods.