Buat fungsi calculateErrorBudget(sloPercent, periodDays) yang menghitung error budget.

Return object:

• slo: sloPercent (number)
• errorBudgetPercent: 100 - sloPercent
• downtimeMinutes: Math.round dari (errorBudgetPercent / 100) * periodDays * 24 * 60
• downtimeFormatted: format sebagai "{jam}h {menit}m" dimana jam = Math.floor(downtimeMinutes / 60), menit = sisa

Contoh: calculateErrorBudget(99.9, 30) → { slo: 99.9, errorBudgetPercent: 0.1, downtimeMinutes: 43, downtimeFormatted: "0h 43m" }

Hint

• Error budget = total waktu - (SLO% × total waktu).
• SLO 99.9% dari 30 hari = 43.2 menit downtime diizinkan.
• errorBudget = periodDays * 24 * 60 * (1 - sloPercent / 100);