ERP-5894 — per-diem calculations. Like timecard methods these had no HTTP surface at all: reachable only through ILookupQueryable (dbo.DbLookupRepo_GetAllPerDiemCalculations), so ERP2 could never offer a recruiter the real list and ContractJob.PerDiemCalculationId had to be typed in as a raw integer or left null. Global rows, not per-company — the SP takes no company parameter — but still authenticated per integration so this is not an open list.