import type { MigrationDb } from "./index";
/**
 * Migration 060: Add navigable group identity to structured attributes.
 *
 * Aspects are broad rooms. `group_key` adds a dresser-level navigation
 * layer between an aspect and a claim slot, so agents can browse large
 * entity graphs without loading every attribute under an aspect.
 */
export declare function up(db: MigrationDb): void;
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