Function mark

src/utils/performanceShim.ts:32–42

(name: string)

}

function mark(name: string): PerformanceMark {
  marks.set(name, now())
  // Return a minimal PerformanceMark-like object to satisfy the interface.
  // React/OTel only use mark() for side effects, not the return value.
  return {
    name,
    entryType: 'mark',
    startTime: marks.get(name)!,
    duration: 0,
  } as PerformanceMark
}

function measure(
  name: string,