Restore Original SAM3 Huggingface Space & Document Updates

Dear SAM3 Team,

Thank you for the great work. There used to be a very helpful Huggingface Space demonstrating SAM3 with several great examples, particularly for customized online streaming. It appears to have disappeared after the release of SAM 3.1.

Would it be possible to restore that Space or provide an updated SAM3.1 version? It was an extremely convenient and useful resource.

In particular, I believe having an explicit streaming API would significantly simplify robotics integration. Additionally, updated documentation on the input/output formats of each API call (tensor/array shapes) would be very helpful. For example, I noticed some inconsistencies in the box coordinate format across different versions and had to check the code.

Start with the repository's example notebooks and current inference API usage, then check whether the former Hugging Face Space is still referenced. Done means either restoring or updating the Space, documenting tensor and array shapes and box coordinate formats for each API call, and deciding whether an explicit streaming API is feasible for robotics integration.

Written by the indexing model from the issue text.