Hugging Face integrates NVIDIA Isaac GR00T N1.5 into LeRobot

Evidence notes
- Hugging Face announced that NVIDIA Isaac GR00T N1.5 could be post-trained and evaluated directly through LeRobot.
- The integration was framed as a way to make open-source customization and deployment of robot foundation models easier for developers.
- This is one of the clearest robotics research-release events on the Hugging Face stack because it connects LeRobot directly to a major robot foundation model.