Email settings return an empty shape instead of a 404

Fetching email settings for a workspace that has never configured them now returns an empty settings shape (address: null, address_complete: false) with a 200 instead of a 404. This makes it clear the workspace simply isn't set up yet — you can send a PUT to configure it — rather than looking like a wrong endpoint. A 404 now means only that the workspace itself can't be found.

Resources: Emails::Setting
Building with an AI agent? Point it at the Emails skill.