Done. The weekly cash forecast memo for Q1 2026 is ready at `output/cash13-note.md`. 

The forecast shows cash declining from $968K to $800K over 13 weeks, with one critical covenant breach in week 5 when cash dips to $736K — $14K below the $750K minimum. Three levers can eliminate the breach: accelerate $14K of customer collections into week 5, defer vendor payments from week 5 to after it, or adjust payroll timing. Week 6 recovers above the minimum.