* DaemonEntry stores the daemon's most recent perimeter_id / private_addr
from heartbeats, with `update_perimeter` and `perimeter_for` accessors.
* issue_pair_attach_jwt mints the iss/sub/aud/sid/exp pair claim shape
(60s TTL) — verified by the target daemon.
* Registry::resolve_attach assembles AttachCandidates: T1 stays None
(NAP-235 canceled), T2 carries the target's perimeter when known, T3
stays None (NAP-238 pending), plus the pair JWT.
* WS handler routes the new DaemonOutbound::ResolveAttach to the new
method and persists perimeter info on every Heartbeat.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
naps62-yoloandClaude Opus 4.7
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