Yes, I made them all during the jam, with the exception of the "selection sprites" sheet, which I made a long time ago as a reusable piece that ends up in all my prototypes with a selected tile type of thing.
And I'm comfortable with any use outside of input for "AI" models, and prefer, but do not require, credit. I'm not currently aware of a license that includes those terms, as it's very difficult to stop someone from feeding anything they find online to an LLM or SLM, so I suppose CC0 1.0 makes sense, unless you're aware of something that fits more closely into my license wishlist.
Well, CC0 definitely doesn’t restrict AI training use. Maybe something at https://github.com/non-ai-licenses/non-ai-licenses … but IDK.