Add real-article reference lists to test-sets/real-articles/

[cpitzi]

Summary

We've run the auditor against several real published articles but the reference lists and results haven't been committed to the repo. These are needed for ongoing false-positive rate validation.

Known completed audits

The following articles have been audited in previous sessions:

• Hawkins (2025) — JOGNN
• Dziadkowiec (2025) — JOGNN
• Cardon & Karr (2026) — (journal TBD)
• Phan, Bethune, & Lathrop (2026) — (journal TBD)

Acceptance Criteria

• Each article's reference list saved as test-sets/real-articles/{first-author-year}.md
• Table in test-sets/real-articles/README.md updated with article name, journal, date tested, and result summary
• ≥90% Defensible classification rate for clean articles (anything lower indicates false-positive drift)

Notes

Extract reference lists from the original articles. If the full reference list isn't available from a prior chat session, re-extract from the published PDF.