Server-side paginated and sorted version of the report's engineers[] list. Rows, figures and grouping match the report exactly: one row per provider login for authors with at least one non-draft open PR or one PR closed without merging in [startDate, endDate]; rows with no provider login are grouped under unknown; known bot authors are excluded. Open figures reflect the current synced state; closedUnmerged is window-scoped. sortBy: authorLogin, openPrs, agingPrs, rottingPrs, closedUnmerged, oldestInactiveDays; ties and null sort values order by authorLogin ascending, nulls last. size is capped at 200.