Api User Org Settings Retrieve

GET/PATCH /api/user-org-settings/ — the caller’s per-org settings.

A singleton per (user, current org): there is no {id} in the URL, so get_object resolves the one row for (request.user, current org). GET of a never-written pair serializes an unsaved default ({pins: []}) rather than creating a row; PATCH upserts last-write-wins.