获取赛事的开盘与收盘赔率(OLV/CLV)。
查询模式:必需 fixtureId + 可选 bookmakers 或可选 oddsIds。
Your API key (query-based auth for v5).
Single fixture ID (e.g. id1400003160574219).
Comma/space-separated bookmaker slugs (default: all).
Optional: comma/space-separated oddsIds to restrict the response.
Returns FixtureClvResponse (fixture meta + OLV/CLV pairs)