fix:修复编译错误

src/main/java/com/iflytop/gd/debug/services/cmds/CoverElevatorLiftDownCommandHandler.java

@@ -19,20 +19,9 @@ import org.springframework.stereotype.Component;
 @Component
 @RequiredArgsConstructor
 @CommandMapping("debug_cover_elevator_lift_down")
-public class CoverElevatorLiftDownCommandHandler implements CommandHandler {
-    private final WebSocketService webSocketService;
-    private final StepMotor stepMotor;
+public class CoverElevatorLiftDownCommandHandler extends BaseCommandHandler {
     @Override
     public void handle(CmdDTO cmdDTO) {
-        webSocketService.pushNotification(Notification.infoHandleStartNotification(cmdDTO));
-        try {
-            Integer velocity = cmdDTO.getIntegerParam("velocity");
-            String velocityUnitStr = cmdDTO.getStringParam("velocityUnit");
-            VelocityUnit velocityUnit = VelocityUnit.toVelocityUnit(velocityUnitStr);
-            stepMotor.setDefaultVelocity(velocityUnit.toMM_PER_SEC(velocity));
-        } catch (Exception e) {
-            webSocketService.pushNotification(Notification.errorNotification(cmdDTO, e));
-        }
-        webSocketService.pushNotification(Notification.infoHandleEndNotification(cmdDTO));
+
     }
 }