Launch GPU instance

curl --request POST \
  --url https://api.case.dev/compute/v1/instances \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "ocr-batch-job",
  "instanceType": "gpu_1x_a10",
  "region": "us-west-1",
  "autoShutdownMinutes": 120,
  "vaultIds": [
    "vault_abc123"
  ]
}
'

{
  "id": "<string>",
  "name": "<string>",
  "status": "<string>",
  "instanceType": "<string>",
  "region": "<string>",
  "pricePerHour": "<string>",
  "gpu": "<string>",
  "specs": {},
  "autoShutdownMinutes": 123,
  "vaults": "<array>",
  "createdAt": "<string>",
  "message": "<string>"
}