Review contents of log messages at varying log levels

[paddybyers]

There's a request to be able to get detailed logs, but excluding actual message payloads. Currently, VERBOSE logs contain a lot of detail necessary for debugging, but also message payloads.

Edit: the primary objective by restricting log contents is to enable a setting that keeps PII out of the logs. However, we would need to decide if that includes clientIds, tokens, etc.

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