List all tournaments or create a new tournament.

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HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Открытый турнир 19х19 для всех участников Лиги Го.\n\nРегламент: олимпийская система, 15 мин + 3 беёми по 30 сек., коми авто.\n\nПризовой фонд (при 12+ участниках и только для участников Лиги): 1 место - 1500 р. 2 место - 1000 р. 3 место - 500 р.\n\nВступить в Лигу Го на странице группы: https://vk.com/pro_league_go\n\nТурнирные таблицы: https://docs.google.com/spreadsheets/d/1iLdPoIIysNW1rJovDHCvtJeR4Qd-1-U5unJqv6GABk4/edit",
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                "name": "Лига Го от StrategGo Club",
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            "id": 99396,
            "name": "余丞浚 黃星瑩Chloe",
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                "username": "傳碁學園",
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            "description": "余丞浚\n黃星瑩Chloe",
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            "name": "Fast Cor. 9x9 10player R-Robin. Starts when full. Nov'19fD",
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                "username": "Kosh-retired",
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            "description": "---\n- STARTS WHEN FULL & Does NOT pause on the weekend.\n\n- Just one round. Ten players, nine games, Chinese Rules/Scoring.\n\n- If this suits you then, Bonne Partie. :)\n\n- This is a '**FAST** Correspondence Tournament'. Please avoid delaying your games using the Vacation feature or Pause. Any participant using Vacation or Pause may be disqualified (and forfeit unfinished games) at the discretion of the Tournament Director.\n\nPlease make sure you understand the 'Clock' settings before you join this tournament.\n\nIt typically takes 3-4 weeks to complete and you will need to log on and play at two well-spaced times most days to avoid losing by timeout.\n\n...and please invite your friends. :)",
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                "summary": "Tournaments for people who like to play quick correspondence games.",
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            "name": "Fast tournament 2025",
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                "username": "Amui",
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            "description": "super fast tournament",
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                "name": " 无间勤碁术化  Go Advance forward forever",
                "summary": "欢迎围棋爱好者来到属于您的园地\n\n\n          In Your 💖 Go to Universes everywhere",
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                "summary": "<b>Calendrier de la session 3</b><br>\nRonde 5 : lundi 30 mars, cours 18h30-19h suivi des parties. Pédagogue : Warren<br>\n\n---<br>\nSi vous ne pouvez pas être présent, veuillez contacter votre adversaire dès que possible.\n<br>\nSi votre adversaire n'est pas l",
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