/**
 * Configuration management.
 *
 * Resolution order (highest priority first):
 * 1. Environment variables (BRANCH_MEMORY_*)
 * 2. Local config (.branch-memory.json in repo root)
 * 3. Defaults
 */
export interface Config {
    /** Directory where branch memories are stored, relative to repo root */
    memoryDir: string;
    /** Name of the memory file Claude Code reads */
    memoryFileName: string;
    /** Automatically save memory when switching branches */
    autoSaveOnSwitch: boolean;
    /** Fallback to main/master/develop if no branch memory exists */
    fallbackToDefault: boolean;
    /** Default branches to try as fallback, in order */
    fallbackBranches: string[];
}
/**
 * Load configuration, merging environment variables over file config over defaults.
 */
export declare function loadConfig(repoRoot?: string): Promise<Config>;