Two related bugs surfaced in multi-session production use of 1.8.0:
1. Replies via `claudemesh send <from_id>` rejected with "no connected
peer for target" when the original sender's session had rotated
(Claude Code restart, /resume). Root cause: from_id carried the
ephemeral session pubkey, which disappears the moment the session
ends. Fix: handleSend pre-flight now also resolves the target
pubkey against the persistent meshMember table and routes to the
owning member's live session(s); MCP push channel now sets from_id
to the stable member pubkey and exposes the ephemeral one under
from_session_pubkey.
2. Broadcast/* and @group sends loopback'd to the sender's *sibling*
sessions (same member, different session keypair), surfacing a
spurious "tampered or wrong keypair" decrypt warning on the
sender's own inboxes. Fix: broadcast/group fan-out now skips by
memberPubkey, not just by presence_id, so the entire sender member
is excluded — direct sends keep per-presence skip so a member can
still DM their own sibling session intentionally.
Push envelope now also carries senderMemberPubkey alongside
senderPubkey so any other client of the WS channel can choose the
right one.