Past Due must track the deadline (Due Date), not Schedule On. Keep dueDate and scheduledDate PATCH mutations independent so rescheduling alone does not clear Past Due.
- GET /api/workorders/board with week window, Unscheduled section, and X of Y counts
- GET /api/workorders/lookups/dispatchers for SHOC filter avatars
- Board projection via WorkOrderBoardDataService with vendor/dispatch join and derived isPastDue
- Phase1_BoardIndexes migration (IX_workOrders_ScheduledDate)
- 5 board unit tests