Run the mental scenario where all you get is the 100k/day cash , no bots, and schematic prices where they are at. Initially people would use mining to use their nanocrafter to get off the ground. It would take a player who wants to engage in industry time to work up enough daily log in $ to start buying schematics. Once they do they start producing items not availible to nanocraft. They are forced to price these based on the ore cost they have buying if not mining it. There would be a glut of ore availible for sale due to no bots so the price of ore would plumet. Then the industry guys start making items with the cheap ore for cheap prices so players will actually buy them.
Then over time as the supply of industry increases the demand for ore raises prices , which in turn slowly raises finished good prices etc. Eventually the prices are relative to the supply of cash which is ever increasing because aside from the schematic prices and sales tax there is no hole for the money to fall out of the economy. They would also have the option to set the daily welfare to whatever they feel matches their schematic price player progression curve goal.
Naturally this would all require a wipe to start off correctly and let natural market forces take root. The bots completely pervert this. Injecting money into a game where you hand cash to every player every day just for logging in is NOT a deflationary concern.