/**
 * Storage Layer - Pattern and Cluster Persistence
 *
 * Handles JSON file I/O for patterns, clusters, and indices
 */
import type { Pattern, Cluster, Phase } from '../types/pattern.js';
/**
 * Load patterns for a given phase
 */
export declare function loadPatterns(phase: Phase): Promise<Pattern[]>;
/**
 * Save patterns for a given phase
 */
export declare function savePatterns(phase: Phase, patterns: Pattern[]): Promise<void>;
/**
 * Load clusters for a given phase
 */
export declare function loadClusters(phase: Phase): Promise<Cluster[]>;
/**
 * Save clusters for a given phase
 */
export declare function saveClusters(phase: Phase, clusters: Cluster[]): Promise<void>;
/**
 * Load semantic hash index for a given phase
 */
export declare function loadIndex(phase: Phase): Promise<Map<string, string>>;
/**
 * Save semantic hash index for a given phase
 */
export declare function saveIndex(phase: Phase, index: Map<string, string>): Promise<void>;
/**
 * Load all patterns across all phases
 */
export declare function loadAllPatterns(): Promise<Pattern[]>;
/**
 * List all session meta files
 */
export declare function listSessionFiles(): Promise<string[]>;
/**
 * Delete a file
 */
export declare function deleteFile(filePath: string): Promise<void>;
/**
 * Get file modification time
 */
export declare function getFileModTime(filePath: string): Promise<number>;
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