Fix compact block issue

[rahulksnv]

Since all the messages hit the same server end point, they need to be wrapped in a common enum. The changes from the last PR did not follow this requirement which causes decode failure. This PR fixes the issue

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[nazar-pc]

The explanation of the PR doesn't fully make sense to me. Yes, it needs to be wrapped and I changed the code to do that explicitly. Looks like I forgot ServerMessage::ProtocolRequest in one place? Then the fix would be a sincle line change rather than introduction of more generics and extra impls.

[rahulksnv]

Then the fix would be a sincle line change rather than introduction of more generics and extra impls.

Not quite .. (I had explained this in more detail in the original PR probably). So we don't want the protocol layer to be aware of the ServerMessage which is consensus specific. For example, we want to be able to reuse the protocol layer as is for execution, and other users.

This would be the simplest fix, than having more complex adapters full of generics, etc

[nazar-pc]

So we don't want the protocol layer to be aware of the ServerMessage which is consensus specific.

But you do have explicit impl that converts into ServerMessage. And because of that you have to add extra generics that would not be there otherwise. I still do not understand how these additional impls and generics are any better than not having them.