B2. Fine-tune Kev-4B

This walkthrough is still being written.

Where	Yens, 1 GPU
What you do	Fine-tune Kev-4B for 100 steps, then score it again.
Data	train.jsonl with Jev’s soft labels; the 1,000 test filings to score
Model	Kev-4B, merged to full weights, then fine-tuned