/**
 * Task 1771 — the ledger census finding.
 *
 * Four of the ledger's failure modes emit no event of their own: a write that
 * was narrated but never landed, a payment with no parent invoice, a stored
 * balance property that has drifted, and a duplicate payment created by a
 * non-deterministic paymentId. None of them can be caught by logging an
 * action, because no action occurs. This reconcile is the substitute, and it
 * is called from two places: the `ledger-reconcile` tool (on demand) and the
 * standing interval in the UI server. Both share this function so the two
 * forms cannot report different things.
 *
 * Pure: no I/O, and `now` is a parameter rather than a Date.now() call.
 */
/** The index names schema.cypher declares for the ledger. Their absence from a
 *  live database means schema.cypher was edited but seed-neo4j.sh never re-ran
 *  on that install, which emits nothing on its own. Defined here because both
 *  the on-demand tool and the standing census check the same list; two copies
 *  would let them disagree about whether the schema is applied. */
export declare const LEDGER_INDEX_NAMES: readonly string[];
export interface PaymentKey {
    invoiceId: string;
    paymentId: string;
    amount: number;
    date: string;
}
export interface LedgerCensusRows {
    invoices: number;
    payments: number;
    orphanPayments: number;
    storedBalanceProps: number;
    paymentKeys: readonly PaymentKey[];
    declaredNotLive: readonly string[];
    /** Count of `[graph-write] reject` lines from the ledger's MCP logs in the
     *  trailing 24 hours. Without it the census cannot tell a healthy empty
     *  ledger from one whose write path is wholly dead: both print
     *  `invoices=0 payments=0`. Task 1788, after exactly that went unseen for a
     *  day. */
    writeRejects24h: number;
}
export interface LedgerCensusFinding {
    invoices: number;
    payments: number;
    orphanPayments: number;
    storedBalanceProps: number;
    suspectDuplicates: number;
    declaredNotLive: readonly string[];
    writeRejects24h: number;
    alarm: boolean;
}
export declare function reconcileLedger(rows: LedgerCensusRows, _now: number): LedgerCensusFinding;
/**
 * The one `[ledger-census]` line format. Shared by the on-demand tool and the
 * standing interval so a log search finds both, and so a new counter cannot be
 * added to one emission and missed by the other.
 */
export declare function formatCensusLine(f: LedgerCensusFinding): string;
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