Soft deletes a time off category and retires everything under it: every active policy on the category is unassigned from its employees and soft deleted with it. Historical balances and time off requests are preserved, and the category is removed from payroll. There is no gate on active assignments, so one call retires the whole tree. Deleting is idempotent, so an id that does not exist or is already deleted also returns 204.

OAuth Scopes: time_off:categories.write