List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-min_ranking&page=1484
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "summary": "Dear members: Thank you for your support! Our guild needs the help of more people to make the guild prosper. I hope everyone can contribute, join the guild, and recommend your friends to this big family.",
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            "exclusivity": "group",
            "started": "2026-03-30T06:00:11.369256Z",
            "ended": "2026-04-20T10:02:17.880596Z",
            "start_waiting": "2026-03-30T06:00:11.220703Z",
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}