The chunk-advertisement misdiagnosis is already fully disproved and documented in tests/README.md's "corrected finding" section; condense the TODO.md entry to a one-line resolved note instead of duplicating the full narrative, keeping only the genuinely still-open question (why specific old external .fxp sample files fail to apply). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011dhtwRLARk4eiPngcQykLJ