Is it possible to make the `StreamableHttpHandler` and `SseHandler` public?

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We're integrating MCP into the HotChocolate GraphQL server, and we need to proxy these handlers and define our own MapGraphQLMcp method. However, the two handlers are marked as internal, so we're unable to access them without forking the SDK. Is it possible to make these handlers public?

Originally posted by @glen-84 in https://github.com/modelcontextprotocol/csharp-sdk/discussions/695

Individua le dichiarazioni e gli utilizzi di StreamableHttpHandler e SseHandler nell’SDK C#, quindi esamina la discussione originale 695 e il contesto attuale dell’issue. Verifica in che modo la loro visibilità influisce sull’API del server e sui test esistenti; il lavoro è completato quando i maintainer hanno stabilito se questi handler debbano poter essere utilizzati pubblicamente senza un fork.