For each article stem, the other article stems it shares the most folded
chunks with (count desc, stem asc). Sources: the synthesized_chunk_sections
fold ledger AND chunk_entities → entities.article_stem (the entity homes). Only
stems present in stemSet (the vault is truth) are counted.
For each article stem, the other article stems it shares the most folded chunks with (count desc, stem asc). Sources: the synthesized_chunk_sections fold ledger AND chunk_entities → entities.article_stem (the entity homes). Only stems present in
stemSet(the vault is truth) are counted.