abkslmandClaude Fable 5 3e25ef9559 feat(relay): wire the live Nucleic Private Relay into the desktop + iOS apps (mesh P2 complete)
The relay Worker (nucleic-edge at relay.nucleic.blakeslee.xyz) is deployed, so land the
formerly deploy-gated client side of the data path:

- NucleicProtocol/Sync/RelayTransport.swift: RelayAPI (one base URL for REST + WS,
  membership -> connection token trade), RelayWebSocket (ordered sends, ping keepalive,
  ping-confirmed connect), RelayFrameChannel (client leg, WireFraming inside WS binary,
  presence fail-fast when the room has no host), RelayPresence.
- NucleicCore/Sync/RelayAccess.swift: X25519 PoP enrollment (RelayEnrollment), room
  credential in the login Keychain (separate from the push credential), membership minting
  with re-enroll-on-401.
- NucleicCore/Sync/RelayListener.swift: host SyncListener demuxing the room socket into
  per-tag virtual FrameChannels via RelayEnvelope; presence-driven reaping; backoff redial;
  injectable RelayRoomSocket seam for tests.
- Wire: additive HostMsg.relayMembership(WireRelayMembership) pushed after every hello
  (SyncHost.register -> AppStore mint) so devices paired before the relay adopt it and the
  ~90-day token refreshes on each connect; the pairing QR also carries a bootstrap
  membership so first contact can ride the relay. Old clients ignore the unknown tag.
- AppStore: .relay joins the listener composite behind the Connection-methods checkbox
  (failure degrades to a status row), advertises relayRoomID in PeerAddresses, mints the
  QR bootstrap in beginPairing.
- Desktop UI: the Nucleic Private Relay toggle is enabled (was "coming soon"); the
  LAN-only banner offers it alongside Tailnet.
- iOS: relay is the last dial candidate in HostConnection pair + reconnect (10s handshake
  watchdog); PairedHost persists relayRoomID/relayMembershipToken/relayURL; the
  relayMembership push updates the registry in place; Settings shows Relay in Transports.

Tests: RelayTransportTests, RelayListenerTests, SyncHostTests relay push + QR bootstrap.
Full suite green (783 core + 113 protocol + 2 new); iOS simulator build succeeds. Live
smoke test against the deployed Worker passed end-to-end (PoP enroll, both token tiers,
two-socket frame round-trip through the Room DO with correct envelope tags).

Known limits: host revoke-on-unpair not wired (endpoint is admin-only); PeerClient
(Mac<->Mac) doesn't dial the relay yet.

Co-Authored-By: Claude Fable 5 <[email protected]>
2026-07-04 21:05:01 -07:00
2026-07-02 22:32:37 -07:00
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