import type { MigrationDb } from "./index";
/**
 * Migration 064: source graph provenance.
 *
 * Sources such as Obsidian are mounted as read-only graph citizens. These
 * provenance columns keep the source-native filesystem topology visible on the
 * graph rows that were created from that source, so disconnect can purge them
 * without touching user-authored memories or unrelated semantic graph rows.
 */
export declare function up(db: MigrationDb): void;
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