Function withBlockTiming

apps/sim/lib/copilot/chat/persisted-message.ts:133–138

(target: T, src: { timestamp?: number; endedAt?: number })

 * persist → normalize → display round-trip — and one rule lives in one place.
 */
export function withBlockTiming<T>(target: T, src: { timestamp?: number; endedAt?: number }): T {
  const writable = target as { timestamp?: number; endedAt?: number }
  if (typeof src.timestamp === 'number') writable.timestamp = src.timestamp
  if (typeof src.endedAt === 'number') writable.endedAt = src.endedAt
  return target
}

function withBlockParent<T>(target: T, src: { parentToolCallId?: string }): T {
  if (src.parentToolCallId) {