LeRobot v0.5.0: Scaling Every Dimension

LeRobot v0.5.0 represents a significant upgrade in the robotics framework, incorporating over 200 merged pull requests and contributions from more than 50 new contributors. Key features of this release include the addition of the Unitree G1 humanoid robot with capabilities for locomotion, manipulation, and teleoperation, as well as new policies such as Pi0-FAST and Real-Time Chunking for enhanced responsiveness. The update also introduces EnvHub for easy loading of simulation environments from the Hugging Face Hub, along with NVIDIA IsaacLab-Arena integration for GPU-accelerated simulations. The codebase has been modernized to run on Python 3.12 and Transformers v5, supporting third-party policy plugins and enabling more efficient dataset processing with streaming video encoding. These advancements, along with a refreshed community and ecosystem, aim to make LeRobot more scalable, efficient, and accessible to a broader range of users and applications.