Stop re-opening protomux channels on every message (corrupted attach and
gossip). Ensure wires only when gaps exist; force recreate for attachment
fetch when no live attach sessions.
Gossip-healthy early returns skipped attachDriveMesh, so peers showed
connected while attachments (and sometimes live fanout) had no sessions.
Add ensureAllPeerWires, rebind before message/attachment fanout, and
route ensureGuildWireChannels through full wire ensure.
Drop Hyperswarm dual connections for the same peer, grace leave emits
so brief socket swaps do not zero the mesh, and require real gossip
delivery so messages are not marked sent with empty wires.
Raven Scott