Reads a manifest.rds created by generate_recipe_sets(), loads one
dataset per row (preferring rds → rdata → csv → txt),
restores attribute "achieved_censoring", and returns a named list
of list(data = <data.frame>, meta = <list>).
Reads a manifest.rds created by generate_recipe_sets(), loads one
dataset per row (preferring rds → rdata → csv → txt),
restores attribute "achieved_censoring", and returns a named list
of list(data = <data.frame>, meta = <list>).