Update vault object

{
  "id": "obj_abc123",
  "vaultId": "vault_def456",
  "filename": "deposition-smith-2024.pdf",
  "path": "/Discovery/Depositions",
  "contentType": "application/pdf",
  "sizeBytes": 2048576,
  "ingestionStatus": "completed",
  "metadata": {
    "client": "Smith & Associates"
  },
  "updatedAt": "2024-01-15T10:30:00Z"
}