message: Use exception in `RobotPool::addRobot` for bad `Robot::Type`
diff: @@ -67,7 +67,7 @@ Robot* RobotPool::addRobot(Robot::Type type)
  return mMiners.back();
  default:
  - break;
  + throw std::runtime_error("Unknown Robot::Type: " + std::to_string(static_cast<int>(type)));
  }
  return nullptr;
  