The relay is now multi-clinic. Each clinic authenticates to the /hub
namespace by signing a challenge with its own Ed25519 clinic signing key
(a per-clinic identity, not a shared RELAY_TOKEN), and the relay routes
every device response back to only the clinic that originated the request
(keyed by requestId) — so clinics never see each other's traffic.
Backend:
- clinic_signing_keys.network_enabled + GET/PUT /api/signing/network
(owner/admin) to join/leave the network.
- relay-client keeps one authenticated hub connection per network-enabled
org (connectOrg/disconnectOrg, hubs map keyed by orgId); emitToWallet/
sendToWallet take orgId; offline flush is org-scoped.
- Wallet import/push return 409 until a clinic joins.
- RELAY_TOKEN is now optional/legacy (open relay needs no shared secret).
Frontend:
- "Join Temetro Network" toggle in Settings → Signing, localized in all
five languages (en, fr, de, so, ar).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Khalid Abdi