Notebook: Phase 8c cleanup cell to free GPU before Phase 9 mini-train (OOM fix)

Notebook: add Phase 8b — training history (3,200 episodes, 6-run ablation table)

Notebook: drop bitsandbytes (triton 3.x ABI break) — fp16 inference doesnt need it

Notebook: fix PYTHONPATH inheritance for !python -m chaosops subprocesses

Phase-wise judge demo notebook (rubric-aligned, 25 cells, Phase 3A LoRA)

Ship Colab training notebook so README link resolves for validation pass