Progress on running workflow, still throwing errors but suspect these just require method signature updates

Progress on testing classify_by method; need to pass preference of channel to patch generator without disrupting existing options to export RGB / multichannel stacks

get_patches now returns an extended DataFrame with a patch column, so that exporters have access to patch metadata with no risk of mixing up indexing

Product methods call RoiSet directly; this is causing problems with multichannel ones where raw data is essentially re-issues to RGB channels

Some test coverage, those that are failing are because of issues propagating nested parameters to pydantic models