Function dirWord

src/cli/maintain-report-export.ts:24–25

(d: MaintainForecast['direction'])

}

const dirWord = (d: MaintainForecast['direction']): string =>
  d === 'rising' ? 'rising ↑' : d === 'falling' ? 'cooling ↓' : 'steady →';

function sparkline(trend: number[]): string {
  const max = Math.max(1, ...trend);