Discovery: wide-area bridge DNS-SD

# Conflicts:
#	apps/ios/Sources/Bridge/BridgeDiscoveryModel.swift
#	src/cli/dns-cli.ts

src/gateway/protocol/schema.ts

@@ -8,6 +8,8 @@ export const PresenceEntrySchema = Type.Object(
     ip: Type.Optional(NonEmptyString),
     version: Type.Optional(NonEmptyString),
     platform: Type.Optional(NonEmptyString),
+    deviceFamily: Type.Optional(NonEmptyString),
+    modelIdentifier: Type.Optional(NonEmptyString),
     mode: Type.Optional(NonEmptyString),
     lastInputSeconds: Type.Optional(Type.Integer({ minimum: 0 })),
     reason: Type.Optional(NonEmptyString),
@@ -63,6 +65,8 @@ export const ConnectParamsSchema = Type.Object(
         name: NonEmptyString,
         version: NonEmptyString,
         platform: NonEmptyString,
+        deviceFamily: Type.Optional(NonEmptyString),
+        modelIdentifier: Type.Optional(NonEmptyString),
         mode: NonEmptyString,
         instanceId: Type.Optional(NonEmptyString),
       },