/**
 * Forgen — Lifecycle Classifier (P3)
 *
 * 솔루션 catalog (~/.forgen/me/solutions/*.md) 를 읽어 각 솔루션의
 * lifecycle 을 hot/warm/cold/dead/new 로 분류한다.
 */
import type { HitRateRow } from './observability-store.js';
export type Lifecycle = 'hot' | 'warm' | 'cold' | 'dead' | 'new';
export interface LifecycleClass {
    solutionId: string;
    lifecycle: Lifecycle;
    /** acted_90d / max(surfaced_90d, 1). surfaced_90d == 0 이면 null */
    hitRate: number | null;
    matched_90d: number;
    surfaced_90d: number;
    acted_90d: number;
    matched_180d: number;
    ageDays: number;
}
/** 분류 로직 — §5.2 */
export declare function classifyOne(_solutionId: string, ageDays: number, rates: HitRateRow): Lifecycle;
/** ~/.forgen/me/solutions/*.md 전체를 분류하여 반환 */
export declare function classifySolutions(): LifecycleClass[];