v5.10.0 data card refresh

v5.10.0 regen — group-audit-aware Method-A je_network export

v5.9.0 fleet alignment: standardize README structure (frontmatter, sections, citation)

Update README.md

Update README.md

Add dataset card

Replace per-file upload with single tarball (HF API 500 errored on 40k-file commit)

initial commit