I'm a stepmom. You're a stepmom. It's not your job, it's not my job.
My suggestion is that you plan a whole bunch of activities or visits to friends/relatives on the weekends when your stepdaughter is scheduled to be at your house. You say to your husband, "I want you to have some good father-daughter bonding time. Enjoy!" Tell her the same thing - "special time with Daddy." Then leave. Do not pre-cook meals, do not make sure her special shampoo or foods are in stock. Do not do his laundry. Don't do anything. This is his daughter and he can parent her and run the house.
If there's any of your stuff she'll get into, then lock it up or leave it with a friend. Don't call home to see how they are managing or to tell them where to find the dinner fixings. Text and say "I love you" and that's it!
If you get home and there's stuff everywhere, don't say a word. Just put it all in a big garbage back or cardboard box, and put it in the garage. If anyone wants to find something, just say, "I had to clean a little so I could walk without tripping, so if you're missing anything, check the bag in the garage." If you're pressed, calmly say, "It's not my stuff and I didn't want to interfere. I didn't know if you were done with it or wanted to keep it, so I saved it all for you to decide." Same line whether it's your husband or your stepdaughter. Say it cheerfully without defensiveness - which is the hardest thing.
If this causes a rift between you and your husband, go to counseling. FInd out why you put up with this, find out why your husband has 2 marriages without good communication.