Cohabitation Advice

I am M31 and my partner is M33. He is moving into my apartment. I am a dog person. I own a dog and my partner owns a dog and a cat. I am not a fan of cats. We have agreed that the bedroom and kitchen are off limits to the cat. We will be keeping those doors closed at all times to enforce this. We also agreed the cat is 100% his responsibility and I will take more responsibility on helping with his dog since already caring for mine makes it easy to just care for both. I love his dog anyway. I am concerned as I am the primary cleaner but cat mess particularly litter and their smell (I think cats smell like spit and to me smell far worse than any dog). I want to find a balance to empathetically hold him to cleaning after his cat and properly caring for it (cats need wet food he will feed it but leave a dirty bowl out until the next feeding). What advice to help keep him on track without me absorbing the responsibility for his cat? I do not want to bond with it, I do not like cats. I simply want to ensure it's needs are met while our home is clean and orderly to a reasonable degree. I expect some cat smell and hair but that's why the bedroom is cat free. I am going to excuse myself there when I reach my limit of cat for the day.

TLDR: My partner is bringing a cat into my home and I want to find ways to hold hi. To proper care and cleaning without nagging him nor absorbing those responsibilities myself.