Done. I've generated the December 2025 KPI scorecard and written both outputs to `output/`:

- **output/scorecard.json** — script output with all calculations, ties verified to the P&L
- **output/scorecard-note.md** — the scorecard note with headline, table, exceptions, and data notes

The headline: **4 of 8 KPIs were on target in December 2025, and 2 have been off target for three months or more.**

The two KPIs in persistent trouble are Days sales outstanding (51.2 days, 6.2 days above target) and On-time delivery percent (93.3%, 1.7 points below target). Two others are off target by smaller margins: Active customers (40 vs 42, two months running) and Inventory turns (5.33 vs 6.50, one month).