/** Longest buffered batch queue while the feature is disabled. */
export declare const MAX_PENDING_BATCHES = 8;
/**
 * Buffered batches older than this (ms) are dropped at flush: their rows have
 * been on screen long enough that replaying the entrance would read as a
 * pop-in, not an arrival. Covers slow settings resolution and re-enables.
 */
export declare const FRESHNESS_WINDOW_MS = 400;
/** Delay before the session-switch replay scans the transcript (host commit). */
export declare const SWITCH_REPLAY_MS = 60;
/** Retry interval while the transcript rows have not mounted yet. */
export declare const SWITCH_RETRY_MS = 80;
/** Max replay retries before giving up on an empty transcript. */
export declare const MAX_SWITCH_RETRIES = 12;
/**
 * A row animated within this window is not replayed again. The observer already
 * animates freshly mounted rows; the session-switch replay exists to cover rows
 * it could not correlate, so replaying a row that just started its entrance
 * would restart it mid-flight — the visible double flash.
 */
export declare const REPLAY_GRACE_MS = 400;
/** One observed row batch: the rows + whether it is a load (stagger) batch. */
export interface PendingBatch {
    rows: HTMLElement[];
    load: boolean;
    /** Epoch ms when the rows were observed (freshness gate at flush). */
    time: number;
}