I should have asked if you made a spot in your contract mentioning you have a cat. You wouldn't want to overlook the fact if a child or baby comes into your care and is allergic. You also need to decide if you would keep the cat in an area of the house during daycare hours if they are allergic OR if you would terminate care with a paid two-week notice, etc if they became allergic. Some families don't even have pets at home, so they may be unaware the child has allergies and all pets are different.
I will never "lock up" my cats, I would rather find another family because each of my cats are just as much as a family member as my husband. LOL
I do keep a very clean house and people comment saying you wouldn't even know I have cats because I dust and vacuum and keep things well organized and under control.
The exception: Depending on my house setup, I would offer to keep my cats in a separate portion of my house but could never keep them in just a bedroom and they never go outside and they would never be allowed in the sleeping room.