- export_video_db_index.py now writes a boolean `include` column
(default True). Flip it to False to drop a noisy/unusable row from
analysis without deleting it.
- load_roi_data filters on `include` automatically (back-compat:
missing column = load everything).
- flies_analysis_simple.ipynb section headers now explain *why* each
step exists (barrier alignment, body-area baseline, merged-blob
heuristic, Hungarian identity tracking) rather than just naming
the step.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>