List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=board_size&page=4180
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "summary": "",
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                "is_public": true,
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            "auto_start_on_max": true,
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            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
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            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-07-20T07:39:11.527078Z",
            "ended": "2025-11-15T15:01:52.195953Z",
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}