It's possible to do, but there are some nuances. It seems like you'll really have to start a new game after this change, because game's logic might break very easily otherwise. Testing it on my end from a new game it works fairly well, Amilia's payment events/other events still works without day reports.
Now, about how to do it, I'll explain with a code preview via dnspyEx:
View attachment 3129844
This highlighted line must be removed in order to skip day reports window completely. One way to do it is to "edit IL instructions"
View attachment 3129867
Delete this, press ok, and you'll get this line removed from the code:
View attachment 3129876
Now, the other problem - it should be fine for vanilla/most BepInEx plugins mods, but not for Tits mod because this makes changes in Assembly-Csharp.dll and I did use it for all other stuff.