import type { SsrMigrationReport, SsrBackMigrationOptions } from '../../types/ssr-migration.js';
/**
 * Run the SSR back-migration for a project.
 * - Discovers all spec dirs with technical.md or progress.md.
 * - Skips done-status specs when allowDoneSpecs is false (default).
 * - In dryRun mode, reports what WOULD happen without mutating any file.
 */
export declare function runSsrBackMigration(opts: SsrBackMigrationOptions): Promise<SsrMigrationReport>;
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