load prev state

cmd/checkout/main.go

@@ -79,6 +79,11 @@ func main() {
 			grainSpawns.Inc()
 
 			ret := checkout.NewCheckoutGrain(id, 0, 0, time.Now(), nil) // version to be set later
+			// Load persisted events/state for this checkout if present
+			if err := diskStorage.LoadEvents(ctx, id, ret); err != nil {
+				// Return the grain along with error (e.g., not found) so callers can decide
+				return ret, err
+			}
 			return ret, nil
 		},
 		Destroy: func(grain actor.Grain[checkout.CheckoutGrain]) error {