List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=exclusivity&page=294
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "started": "2025-04-05T11:00:14.707411Z",
            "ended": "2025-05-29T07:47:44.905842Z",
            "start_waiting": "2025-04-05T11:00:14.241163Z",
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}