/**
 * Discover specs buried in subcategory folders and flatten them to planu/specs/{slug}/.
 * Also converts old blockquote metadata to YAML frontmatter.
 * This runs on init_project to fix specs created by older Planu versions.
 */
export declare function discoverAndFlattenSpecs(projectPath: string): Promise<{
    flattenedCount: number;
    convertedCount: number;
    renamedCount: number;
    errors: string[];
}>;
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