curl --request POST \
  --url https://staging.cutmake.ai/api/v1/labor-cost/estimate \
  --header 'Content-Type: application/json' \
  --data '
{
  "totalSam": 123,
  "costPerMinute": 123,
  "shiftType": "regular",
  "conversionRate": 123
}
'

{
  "totalSam": 123,
  "costPerMinute": 123,
  "shiftType": "regular",
  "shiftMultiplier": 123,
  "conversionRate": 123,
  "laborCostVnd": 123,
  "laborCostUsd": 123,
  "formula": "<string>"
}