/**
 * Contract migrate hook, invoked after `aiws update` projection completes.
 *
 * Runs each idempotent migrate script in order (requirements first, then problem-issues):
 * - CSV present & JSONL missing/empty  -> migrates CSV -> JSONL (exit 0, "OK: migrated N rows")
 * - nothing to migrate                 -> exits 0 with "SKIP: ..."
 * - script missing / python3 missing / any failure -> logged as warning, NEVER blocks update.
 */
export declare function runContractMigrateHook(workspaceRoot: string): Promise<void>;