- `commercial_use` is now `yes` / `no` / `restricted`, with a `license_url` per row. Timestral-209M is `restricted`, and its `license` reads `Modified MIT` without the revenue threshold.
- Adds `pairwise.csv` (`pairwise` config): fev-bench pairwise win rate and skill score with 95% CIs, MASE and WQL, overall and per board, computed from `tasks.csv` with fev's own code (commit f9e2c7d).
- README documents both.
The Space needs its companion PR to read the new `commercial_use` values and show the pairwise section; merge both together.
