/**
 * Headless Sync Command
 * Runs project scan + AI enhancement and persists context to .ralph/.context.json
 * CLI equivalent of the TUI /sync command, for non-interactive use.
 */
/**
 * Pure sync logic — scans, enhances, persists context.
 * Returns the context file path on success. Throws on failure.
 * Safe to call from tools/agents (no process.exit).
 */
export declare function syncProjectContext(projectRoot: string): Promise<string>;
/**
 * CLI entry point — wraps syncProjectContext with process.exit behavior.
 */
export declare function syncCommand(): Promise<void>;