A backend directory holding a NOTES.md and no .pte was exported and not
published. 31 such notes existed across the estate with nothing in the cards
pointing at them.
Every model repository's README follows one shape: four sections generated
from the tree and the config.json files, plus hand-written free sections for
what the artifacts cannot express. Records which facts a card must not
restate, so a card and the files it describes cannot disagree.
