Get image details

{
    "success": true,
    "image": {
        "id": "12345",
        "name": "Ubuntu-Server-22.04",
        "type": "Snapshot",
        "status": "available",
        "size": "25.5 GB",
        "snapshot_name": "prod-backup-2024",
        "created": "2024-12-10T10:30:00Z",
        "description": "Production server backup"
    },
    "tier": "legacy"
}