feat: support graceful disconnect in PGCoordinator #10937
Merged
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Adds support for graceful disconnect to PGCoordinator. When peers gracefully disconnect, they send a disconnect message. This triggers the peer to be disconnected from all tunneled peers.
The Multi-Agent Client supports graceful disconnect, since it is in memory and we know that when it is closed, we really mean to disconnect.
The v1 agent and client Websocket connections do not support graceful disconnect, since the v1 protocol doesn't have this feature. That means that if a v1 peer connects to a v2 peer, when the v1 peer's coordinator connection is closed, the v2 peer will
see it as "lost" since we don't know whether the v1 peer meant to disconnect, or it just lost connectivity to the coordinator.