/**
 * Suspend an active session.
 *
 * @task T4782
 * @epic T4654
 * @task T1450 — normalized (projectRoot, params) signature
 */
import type { Session } from '@cleocode/contracts';
import { type SessionSuspendParams } from '@cleocode/contracts';
/**
 * Suspend an active session.
 * Normalized Core signature: (projectRoot, params) → Result.
 * Sets status to 'suspended' and records the reason.
 * Throws if session not found or not active.
 * @task T1450
 */
export declare function suspendSession(projectRoot: string, params: SessionSuspendParams): Promise<Session>;
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