Run GPU preflight before smoke training

Add GPU preflight diagnostics

Update adapter cards after train_all phases

Add adapter model card updater

Add artifact checks to train_all pipeline

Fix artifact checker to use repo_info siblings

Add artifact completeness checker

Update CPU validation dependencies

Add training config inspection script

Add one-command Colab training orchestrator

Add CPU validation shell entrypoint

Set left-padding tokenizer for DPOTrainer

Set Qwen chat EOS token in SFT config

Set Qwen chat EOS token in smoke test

Add evaluation script

Add T4 smoke test

Add SFT training script

Add DPO training script

Add dataset builder script