Do a sweep over openneuro priority datasets

- doing 1 subject (session) per each one of the priority datasets with
- 1 minimal and 1 full (we need to assess)

The issue does not name any files, tests, entry points, priority datasets, or expected outputs. Start by locating how datasets and BAB runs are selected and recorded, then identify the priority dataset list and clarify what “minimal” and “full” mean. Done means one subject or session has been run in both modes for every priority dataset, with the assessment captured.

Written by the indexing model from the issue text.