Summary

Per our quick discussion in Discord, gating the durability agent's recovery logs behind count > 0 so an idle app doesn't emit Recovered 0 incoming envelopes or Successfully recovered 0 messages every poll cycle.

Changes

• TransportLoggerExtensions.RecoveredIncoming and RecoveredOutgoing early return when count is zero
  • These helpers are called by every persistence provider, but I still suggest it makes sense to avoid logging zeroes here
• RavenDbDurabilityAgent.Incoming.cs and RavenDbDurabilityAgent.Outgoing.cs
  • Avoid logging when the count is zero