Kontaktperson anlegen

curl --request POST \
  --url https://api.blueplant.app/api/v1/customer/contact-person \
  --header 'ApiKey: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "customerId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "firstName": "<string>",
  "lastName": "<string>",
  "phoneNumberLandline": "<string>",
  "phoneNumberMobile": "<string>",
  "emailAddress": "jsmith@example.com",
  "function": "<string>",
  "isMainContact": false,
  "validFrom": "2023-12-25",
  "validUntil": "2023-12-25"
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}