molluskandClaude Opus 4.8
10707152a3
Design-first checkpoint for S8 (authorize inbound audio against live room membership). Codex's design note (in the handoff task-report.md) establishes the authoritative roster = gossip IrohGossipState.peers, NOT the audio transport connection list, and recommends mirroring it into an audio-admission snapshot consulted at AudioRouter::accept + datagram ingest. This commit lands ONLY the pure decision seam + tests; wiring is deliberately paused for a senior decision on the reconnect-grace policy (gossip drops a peer from the roster on transient NeighborDown, but core keeps the audio supervisor alive for RECONNECT_GRACE — a strict roster-only gate would cut audio on blips). - audio_sender_admitted(remote, roster) -> bool (pub(crate), #[allow(dead_code)]). - 4 tests: member admitted, stranger rejected, former member rejected after roster removal, mid-join peer rejected until authenticated Announce inserts it. - No behavior change: accept/datagram/mixer paths untouched. S8 remains OPEN. 310 lib tests / clippy --all-targets / release all green (re-run by senior). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>