Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> # Conflicts: # README.md # crates/xtrain-autodiff/tests/autograd.rs # crates/xtrain-model/src/model.rs # crates/xtrain-train/src/bin/train.rs # crates/xtrain-train/src/train_loop.rs # docs/evolution.md