Choose feature-first when features are independent and a person or an agent should live in one folder. Persistence and UI for that feature are owned there, not only the endpoint.
Choose it over layer-first when a feature change should not touch four top-level directories, and when you will enforce the dependency rule by review because the folders no longer do it for you.
Choose it over hybrid when the repository impl belongs to the feature. Hybrid keeps persistence in a shared infra/ so two features cannot each grow a private Note. Feature-first will let them, unless shared/ and review stop it.
If the same entity is saved by two endpoints, do not start here.
The dependency rule does not change if you pick a different track. Domain is the same note either way.