adding more tracing detail on failure condition #75
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Adding more tracing in WebSocket, and fixing a logic flaw (event flow issue) where relevant mutable state was known but not correctly set in place when external events could be triggered - specifically, inital sync on connecting to a peer can trigger concurrently with finishing setup such that the send() can't operate since the connection state isn't finished setting up. Re-ordered that flow so that state is set up completely before that signal is sent.
That signal could be sent outside of the attemptConnect() flow, but two places can potentially call this logic flow, so keeping it together and (unfortunately - as a side effect) seemed like a better way to collapse the detail to be able to reason about it. I changed up the return value from attemptConnect() so that it's a bit "less" of a pure function, but it's (more) obvious that it operates on context/state and updates it (a mutable function)