Bbox format for prompt encoder.

Hi,
What exactly is the bbox format for the **prompt encoder**. Also, will it be the same while using model predict function with bbox as prompt?

Start by reading the prompt encoder and model predict interfaces referenced in the issue. Document the expected bounding-box format and clarify whether the same format applies when bbox is passed to model prediction; done means both usage questions are answered clearly.

Written by the indexing model from the issue text.