Interface LedgerEntry

One ledger row as a panel shows it (createdAt epoch-ms). amountCents is the SIGNED cash that moved (+ in, − out), or null for credits-only rows (usage debits, free grants).

interface LedgerEntry {
    id: string;
    delta: number;
    reason: string;
    createdAt: number;
    amountCents: number | null;
}