Variable CURRENT_MESSAGE_PROTOCOLConst

Identifier for the current messaging protocol in peerkit.

Stream lifecycle: opened by the first peer to send a message on a given connection. Bidirectional and long-lived:

1. Opener sends a framed message and registers a reply listener on the same stream.
2. Both peers write to the same stream for the lifetime of the connection.

The stream is reused across messages; it is not closed after each send. Only available on nodes, relays do not register this protocol.