List Lists

curl "https://api.clustr-ai.com/api/public/lists" \
  -H "Authorization: Bearer YOUR_API_KEY"

{
  "success": true,
  "data": {
    "lists": [
      {
        "id": "l1a2b3c4-...",
        "name": "Q3 target accounts",
        "entity_type": "accounts",
        "list_kind": "membership",
        "company_ids": ["9c4d5e6f-...", "7a1b2c3d-..."],
        "created_at": "2026-07-01T10:00:00Z"
      }
    ]
  }
}