Function pickLatestStartedMarker

apps/sim/lib/logs/execution/progress-markers.ts:132–139

(
  a: ExecutionLastStartedBlock | undefined,
  b: ExecutionLastStartedBlock | undefined
)

 * holds it. ISO UTC timestamps compare correctly lexicographically.
 */
export function pickLatestStartedMarker(
  a: ExecutionLastStartedBlock | undefined,
  b: ExecutionLastStartedBlock | undefined
): ExecutionLastStartedBlock | undefined {
  if (!a) return b
  if (!b) return a
  return a.startedAt >= b.startedAt ? a : b
}

/** Pick the later of two last-completed markers by `endedAt`. See {@link pickLatestStartedMarker}. */
export function pickLatestCompletedMarker(