excellent work! this is miles ahead of what i've played the last time, and i was pleasantly surprised seeing how much you added
the intro/tutorial works and i was able to orient myself pretty quickly. the base mechanics (buy/sell/clean) still work well and i encountered no issues there. being able to customize your shop was great, occulted wood chads stay winning.
i added an artifact that made a green circle appear, and was unsure what that was about
the idea of items becoming rarer and more common based on the day is clever, although it seems like what i was selling was not tied to the economy (unless this is a Bibble and Pie economy)
something that might be nice is that for cheap items (customer wanted to sell me a $2 thing), reducing the price should automatically go to lower fractions than a dollar by default, since changing it down to $1 is too low, but i don't want to start changing cents. it's a tricky and a bit spazzy complaint on my part, but what i would have wanted to see is that going down on the dollar amount would bring it down to 1.50 or 1.75 - so price changes should be more tied to the overall price of the item (perhaps a markup/down %) instead of whole dollar/cent amounts. i get that i can just move one unit to the left and edit the cent values, but that's one less move in a setting where speed might matter the more hectic the game gets (what if i have 5 customers waiting in line?)
either way, well done and excellent improvement. eager to see how this develops.