Stable doors and bolts and all but… Do not leave the cat food or water out for your cat, feed it, throw away anything that’s left and clean the bowls. Homes with cats and dogs have more problems with rats (especially as they’re not usually bothered by your average house cat or dog) and mice than those without due to the left out bowls meaning ready availability of food.
Oh and that’s a rat (courtesy of Dudley zoo)
Still at least you’ve not got squirrels, I’ll swap if you like.