Done. The 13-week cash forecast is built from your CSV with figures computed by the script. 

**Covenant flag:** Week 5 breaches the $750K minimum with a closing balance of $736K, leaving only ($14K) shortfall. Cash recovers in week 6 and closes week 13 at $800K.

Both files are ready:
- **output/cash13.json** — the script's computed figures
- **output/cash13-note.md** — the cash memo with the weekly forecast table, covenant breach details, and four action levers the treasurer can consider to lift the trough