Hey! :)
I did not use AI to create any artifacts in regard to code or illustrations for Hexxmap or any of my other software and art packs. I use AI as a Google-replacement to gather information and research across websites instead of searching it myself on Stack Overflow, Reddit and so on, which includes finding explanations for bugs, but implementing and testing them myself.
The tile data is available in an own custom format as a text file, and maps can be exported to pngs. Can you elaborate what you mean with play in person? Would you like to feed the tile data into another software for printing?
With regions, you probably mean grouping multiple hexes together and then attaching an encounter table or tile information to it, right?