ref(transport): move HTTP delivery into the root package

[giortzisg]

Description

Issues

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Internal transport API leaked publicly

Medium Severity

TransportOptions, ErrTransportQueueFull, ErrTransportClosed, and ErrEmptyEnvelope were exported so the root package could use them from internal/http. After the move they remain exported on the public sentry API, even though the constructors and transport types were unexported. Callers have no public way to construct these transports or receive these errors, so the exports become a permanent surface that cannot later be removed without a breaking change.

 

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