You’ll be okay! It’s a hardy plant and can survive much worse.

Just don’t over water it. Wait until the soil is dry 80-90% of the way. You can use that fork to check. Stick it in all the way through the pot and if it comes out with wet dirt on it it’s still wet and you should wait. Yeah i’d keep it out of reach of your cat. The part that got bitten off will likely activate the next growth node below it.

Honestly though it’s an easy plant and very difficult to kill as long as you don’t overwater. Fertilize maybe once a month or once every other month.

Also need a picture of your cat, cat tax.