/**
 * Migration 019: Knowledge Architecture Structure
 *
 * Adds structural backbone for the knowledge graph:
 * - Backfills agent_id on existing entities table
 * - Creates entity_aspects, entity_attributes, entity_dependencies, task_meta
 *
 * Part of KA-1 (Schema + Types + Read/Write Helpers).
 */
import type { MigrationDb } from "./index";
export declare function up(db: MigrationDb): void;
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