Function withErrorContext

lib/gstack-memory-helpers.ts:432–461

(
  op: string,
  fn: () => T | Promise<T>,
  caller: string = "unknown"
)

 * On error: the error is RE-THROWN after logging — caller still owns flow.
 */
export async function withErrorContext<T>(
  op: string,
  fn: () => T | Promise<T>,
  caller: string = "unknown"
): Promise<T> {
  const t0 = Date.now();
  try {
    const result = await fn();
    logErrorContext({
      ts: new Date().toISOString(),
      op,
      duration_ms: Date.now() - t0,
      outcome: "ok",
      schema_version: 1,
      last_writer: caller,
    });
    return result;
  } catch (err) {
    logErrorContext({
      ts: new Date().toISOString(),
      op,
      duration_ms: Date.now() - t0,
      outcome: "error",
      error: err instanceof Error ? err.message : String(err),
      schema_version: 1,
      last_writer: caller,
    });
    throw err;
  }
}

function logErrorContext(entry: ErrorContextEntry): void {
  try {