/**
 * Migration 048: Add turn_status column to interactive_sessions.
 *
 * Tracks per-session activity state for UI dot indicators:
 *  - idle: no active turn, nothing to show
 *  - processing: agent is actively working on a response
 *  - unread: agent finished responding but user hasn't seen it yet
 *
 * Used by chat buttons (global/repo/feature) to show activity dots.
 */
import type { MigrationParams } from 'umzug';
import type Database from 'better-sqlite3';
export declare function up({ context: db }: MigrationParams<Database.Database>): Promise<void>;
export declare function down({ context: db }: MigrationParams<Database.Database>): Promise<void>;
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