My cat damaged my sprout, will it survive?

Hey man, that sounds very very funny but also very very bad :D As far as I understood correctly, the cotyledons are still on there, your cat just ate the 2 first true leaves? As long as there are still some sort of leaves on there, its gonna recover sooner or later. If you can afford the risk and electicity bill, just let it go and see if it grows back or dies. (Picture would be great here btw). If it looks really bad it might save time to just pop a new seed and then make sure your cat stays out of your room :D Cheers dude, dont punish your cat though, they are just weed connoisseurs too :P