/**
 * RepoProfileService
 *
 * Generates and maintains a living markdown profile at `.lisa/data/repo-profile.md`
 * that gives every new session instant understanding of the project.
 *
 * Consumes pipeline data from Phase 1 (triage) and Phase 3 (extraction)
 * to render structured markdown with sections for overview, architecture,
 * hotspots, decisions, gotchas, and recent activity.
 *
 * Part of LISA-11: Repo Profile Generation.
 */
import type { IFileSystem } from '../../domain/interfaces/IFileSystem';
import type { ILogger } from '../../domain/interfaces/ILogger';
import type { IRepoProfileService, IProfileInput, IProfileFreshnessResult, IProfileGenerateOptions } from '../../domain/interfaces/IRepoProfileService';
/**
 * Calculate freshness state from file modification timestamp.
 * Pure function for testability.
 */
export declare function calculateFreshness(mtimeMs: number | null, now?: number): IProfileFreshnessResult;
/**
 * Render the full profile markdown from pipeline data.
 * Pure function for testability.
 */
export declare function renderMarkdown(input: IProfileInput, options: Required<IProfileGenerateOptions>): {
    markdown: string;
    sectionsPopulated: number;
};
/**
 * Create a Repo Profile service.
 *
 * @param fs - File system abstraction for reading/writing the profile
 * @param logger - Optional logger
 * @returns A Repo Profile service
 */
export declare function createRepoProfileService(fs: IFileSystem, logger?: ILogger): IRepoProfileService;
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