saltybot_first_encounter 0.1.0 First encounter orchestrator node for unknown person detection and enrollment. State machine: DETECT → GREET → ASK_NAME → SMALL_TALK → ENROLL → FAREWELL sl-controls MIT rclpy std_msgs geometry_msgs sensor_msgs ament_python ament_copyright ament_flake8 ament_pep257 python3-pytest ament_python