https://www.vice.com/en/article/a-vietnamese-company-is-brin...
Seemingly as early as 2010:
https://en.wikipedia.org/wiki/Trung_Nguy%C3%AAn#Weasel_and_L...
I assume that such coffee is good because the civet cat has taste for good coffee cherries, not really because of the digestive enzymes or whatnot.