export const PERIOD_DAYS = [1, 7, 30, 90] as const; export type PeriodDays = (typeof PERIOD_DAYS)[number]; export type PeriodValue = "24h" | "7d" | "30d" | "90d"; export function toPeriodValue(days: PeriodDays): PeriodValue { return days === 1 ? "24h" : `${days}d`; }