/**
 * `peaks workspace migrate-1-4-1` — R004.
 *
 * Cleanup command for projects upgraded from peaks-loop 1.4.1 → 1.4.2.
 *
 * `.peaks/_runtime/<sid>/`. Per-request artifacts (PRD, RD, QA, SC requests)
 * were written to the new root, but per-session artifacts (tech-doc.md,
 * code-review.md, test-cases/<rid>.md, etc.) were kept at the legacy
 * `.peaks/_runtime/<sid>/<role>/<file>.md` path. The 2-tier fallback in
 * `resolvePrerequisiteAbsolutePathWithFallback` accepts either location, so
 * the functional behavior is correct, but the user's filesystem has visible
 * dual-path duplication ("飘逸" — the user's term for the UX).
 *
 * R004 ships this command to physically move the legacy per-session files
 * into the canonical `_runtime/<sid>/<role>/` location. After this runs,
 * the project has a single canonical tree; the legacy `<sid>/<role>/`
 * directories are removed (only if empty after the move).
 *
 * Default: dry-run. Pass `--apply` to actually move.
 */
export declare const PER_SESSION_ARTIFACT_TYPES: readonly ["rd/tech-doc.md", "rd/code-review.md", "rd/security-review.md", "rd/perf-baseline.md", "rd/bug-analysis.md", "qa/security-findings.md", "qa/performance-findings.md"];
export declare const PER_REQUEST_ARTIFACT_TYPES: readonly ["qa/test-cases/<rid>.md", "qa/test-reports/<rid>.md"];
export type MigrationPlanEntry = {
    readonly sessionId: string;
    readonly relativePath: string;
    readonly from: string;
    readonly to: string;
    readonly sha256: string;
    readonly reason: 'legacy-only' | 'identical-content-already-canonical' | 'content-mismatch' | 'no-legacy-file';
};
export type MigrationResult = {
    readonly plan: ReadonlyArray<MigrationPlanEntry>;
    readonly applied: boolean;
    readonly movedCount: number;
    readonly conflictCount: number;
    readonly deletedEmptyDirs: ReadonlyArray<string>;
    readonly errors: ReadonlyArray<{
        path: string;
        message: string;
    }>;
};
export declare function planMigrate1_4_1(projectRoot: string): MigrationResult;
export declare function applyMigrate1_4_1(projectRoot: string): MigrationResult;