Add Attribution & takedown section

docs: add arxiv: tags for paper bibliography anchors (#8)

docs(readme): align with canonical source-of-truth (cond-4 framing, cond-3 vs cond-4 distinction) (#7)

docs: add citation, limitations section, update condition references (#5)

docs: add comprehensive README with schema, source breakdown, and usage examples

feat: add Chinese native code dataset (3,486 files from 5 sources)

Update dataset card: fix languages (am → es), add experiments link (#1)

init: create README.md

initial commit