fix synspy-worker for nucleic regions.. looping no-op
fix synspy-worker for nucleic regions.. looping no-op

1. Finish conversion to use RIDs so the record-claiming actually works
2. Restore NPZ prep for nucleic regions, while omitting voxels

informatics-isi-edu/synspy,informatics-isi-edu/synspy,informatics-isi-edu/synspy