40 MB of third-party copyrighted books sit in references/ so the research
scripts can read them. Untracked is not the same as safe: one broad
`git add -A` puts them in history permanently and on a public remote.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
A 2.1 GB tick .dat was committed in c7e9777 by a broad 'git add -A' and removed again in
6bb3386 - but a delete does not remove the blob from history, so the 2096 MB object is
still reachable and still gets pushed. That is what made syncing hang.
Ignoring the paths only prevents a recurrence; clearing the existing blob needs a history
rewrite, which is the user's call since it rewrites pushed commits.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
- Introduce per-bar feature cache to avoid redundant recomputation of input vectors during training.
- Rename EnsureLabelCacheCapacity to EnsureBarCachesCapacity to reflect management of both label and feature caches.
- Fix oversampling logic to maintain balanced representation among minority classes, replacing independent 5x caps that caused relative bias.
