Create Fleet
Launch a fleet of parallel browser sessions.
Response
{
"id": "flt_a1b2c3",
"size": 10,
"status": "launching",
"sessions": [
{ "id": "ses_001", "status": "launching" },
{ "id": "ses_002", "status": "launching" }
],
"createdAt": "2026-06-23T15:00:00Z"
}