I am so very sorry.
Crypto transmission is fecal-oral, it is not airborne. As long as you practiced very strict quarantine between your two snakes the other one should be ok. I would definitely do several more tests though, a few months apart. In the meantime nothing else comes into your collection.
Chlorine, vinegar, and F10SC disinfectants do not kill crypto, only ammonia does. So if you want to keep your corn snake's equipment it will have to be disinfected with 100% ammonia. Take it all outside, wash it with soap and water, spray with 100% ammonia, let it dry, and rinse. Repeat several times over several days.
I would also put the retailer who sold it to you on blast as shops typically don't QT so God knows how many other infected animals they sold.