import type { StoragePlugin, ObservationType } from './types.js';
export interface LifecycleConfig {
    ttl_days: number;
    max_db_size_mb: number;
    max_observations: number;
    preserve_types: ObservationType[];
    vacuum_on_cleanup?: boolean;
}
export declare class LifecycleManager {
    private storage;
    private config;
    constructor(storage: StoragePlugin, config: LifecycleConfig);
    cleanup(): Promise<{
        deleted: number;
    }>;
    cleanupSession(sessionId: string): Promise<{
        deleted: number;
    }>;
}
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