Get customer details

curl --request GET \
  --url https://app.kapso.ai/api/v1/customers/{customer_id} \
  --header 'X-API-Key: <api-key>'

{
  "data": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "name": "Example Client",
    "external_customer_id": "CLIENT-123",
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  }
}