My project is in Vue 3 (Composition API) w/ Pinia and SignalR

Here is an example of what I'm working with:
I have a parent object, let's call it Oven, and a child object called Bread. There is a property in Oven called Bake which is of type Bread and represents the actively baking bread instance.

I have two pinia stores. One which stores all Oven instances and another which stores all Bread instances. These stores are initialized through separate API endpoints, so any instances of Bread kept in the Bake property within the Oven store will be different instances from the ones kept in the Bread store.

My questions are:

1. Is there a way to directly reference an instance of Bread from the Bread store within an Oven object.
2. If so, is that an appropriate solution?
3. If not, would I then need to listen to a Bread changed SignalR event in both the Oven store and Bread store in order to update both instances? This seems inefficient to me, so I'm trying to find alternatives.