robot.disconnect() not getting called in record script when exceptions are thrown.

[adityabhas22]

System Info

- lerobot version: 0.4.3
- Platform: Linux-6.14.0-36-generic-x86_64-with-glibc2.39
- Python version: 3.10.19
- Huggingface Hub version: 0.35.3
- Datasets version: 4.1.1
- Numpy version: 2.2.6
- PyTorch version: 2.7.1+cu126
- Is PyTorch built with CUDA support?: True
- Cuda version: 12.6
- GPU model: NVIDIA GeForce RTX 4080 SUPER

Information

• One of the scripts in the examples/ folder of LeRobot
• My own task or dataset (give details below)

Reproduction

Run a lerobot-record command with so101 setup, and force quit/wait for an exception to occur.

Expected behavior

You will notice that the follower arms don't actually get disconnected and the motors remain in a fixed position which led to burning my motor.

[adityabhas22]

I've added a try catch block where it finally ensures that both teleop and robot devices get disconnected.
Should I raise a PR for this?

[sotanakamura]

I created #2496 to fix this issue.

Related to #2495.