import type { MigrationDb } from "./index";
/**
 * Migration 045: Lossless working-memory hardening
 *
 * Adds:
 * - transcript recency + FTS search support for prompt-time fallback lookup
 * - agent scoping columns for summary runtime tables
 * - DB-backed MEMORY.md head metadata for merge-safe writes
 */
export declare function up(db: MigrationDb): void;
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