Complete. Built the 13-week cash forecast from the CSV data:

**Covenant flag**: Week 5 breaches the $750K minimum, closing at $736K with headroom of ($14K). Cash recovers in week 6 to $816K.

**Summary**: The forecast opens at $968K and closes at $800K in week 13. Receipts of $3.1M are offset by disbursements of ($3.3M), driving a net drawdown of ($168K). The trough occurs in week 5, driven by a combination of lower customer collections ($217K) and elevated disbursements ($269K).

Two files written to `/output/`:
- **cash13.json** — script output with all reconciled figures
- **cash13-note.md** — cash memo with weekly forecast table, covenant breach analysis, and treasurer action levers (accelerate collections, defer vendor payments, adjust capex timing)