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- scripts/run_pretrain.py -> scripts/pretrain.py: pre-trains on McGill corpus (data/processed/mcgill/), saves checkpoints/pretrained.pt. - scripts/train.py: rewritten as high-level fine-tune wrapper; loads pretrained.pt, trains on data/processed/user/, saves finetuned.pt. Both scripts include timing estimate, loss-curve plot, per-epoch report, and --skip-training flag. - README: updated section 7 to reflect new script names and separate data directories. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>