export interface SessionLogCaptureSummary {
    copied: number;
    unchanged: number;
    metadataOnly: number;
    deferred: number;
    warnings: string[];
}
type CaptureTestPhase = "after-copy" | "after-prepare" | "after-prepare-batch" | "after-rename" | "before-commit" | "after-commit-batch";
/** Test-only crash seam for recovery coverage. */
export declare function setSessionLogCaptureTestHook(hook: ((phase: CaptureTestPhase, source: string) => void) | undefined): void;
/** Test-only seam for forcing the append/compaction crash window. */
export declare function setSessionLogCaptureMaxRecordsBeforeCompactionForTest(maxRecordsBeforeCompaction: number | undefined): void;
/**
 * Capture supported harness logs for one HQ root. This operation is deliberately
 * best-effort to retain reindex's historic contract, except a corrupt capture
 * store refuses the pass rather than silently re-copying every transcript.
 */
export declare function captureSessionLogs(root: string): SessionLogCaptureSummary;
export {};
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