/**
 * DashboardService — FR-W01 仪表盘总览数据层
 *
 * AC1: 核心 KPI 卡片（知识总量、类型分布、状态分布、命中率趋势、未解决冲突、待确认条目）
 * AC2: KPI 趋势同时展示绝对值和百分比变化
 * AC3: 动态推荐下一步操作
 * AC4: basePath 前缀（由调用方注入）
 */
import type { StorageAdapter } from '../storage/storage-types.js';
import type { MetricsCollector } from '../metrics/metrics-collector.js';
import type { TimeWindow } from '../metrics/metrics-types.js';
import type { DashboardOverview } from './workbench-types.js';
export interface DashboardServiceDeps {
    storage: StorageAdapter;
    metrics: MetricsCollector;
    basePath?: string;
}
export declare class DashboardService {
    private storage;
    private metrics;
    private basePath;
    constructor(deps: DashboardServiceDeps);
    getOverview(currentWindow?: TimeWindow, previousWindow?: TimeWindow): Promise<DashboardOverview>;
    private buildKpiCard;
    private buildRecommendations;
}
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