grid2: emit grid profit after profit stats fix

pkg/strategy/grid2/recover.go

@@ -89,6 +89,8 @@ func (s *Strategy) recoverByScanningTrades(ctx context.Context, session *bbgo.Ex
 		}
 
 		s.logger.Infof("fixed profitStats: %#v", s.GridProfitStats)
+
+		s.EmitGridProfit(s.GridProfitStats, nil)
 	}
 
 	return nil

pkg/strategy/grid2/strategy.go

@@ -1852,7 +1852,9 @@ func (s *Strategy) Run(ctx context.Context, _ bbgo.OrderExecutor, session *bbgo.
 	s.orderExecutor = orderExecutor
 
 	s.OnGridProfit(func(stats *GridProfitStats, profit *GridProfit) {
-		bbgo.Notify(profit)
+		if profit != nil {
+			bbgo.Notify(profit)
+		}
 		bbgo.Notify(stats)
 	})