updates on the sweeper and eligibility things in the order

main.go

@@ -239,6 +239,9 @@ func main() {
 	// 8. Start the assignment worker. Every replica runs one; they share a
 	// durable consumer, so JetStream hands each booking to exactly one of them.
 	go assignment.StartAssignmentWorker()
+	// Retries every unassigned pending booking on a timer, so a booking whose
+	// retry window closed while no rider was free is still picked up later.
+	go assignment.StartPendingSweeper()
 
 	// 9. Point the stop sequencer at the Route Optimization API.
 	routing.BaseURL = cfg.RouteOptimizerURL