Authenticate private media capabilities in Noise

bitchatTests/Services/BLENoisePacketHandlerTests.swift

@@ -18,6 +18,7 @@ struct BLENoisePacketHandlerTests {
         var lastSeenUpdates: [PeerID] = []
         var decryptCalls: [(payload: Data, peerID: PeerID)] = []
         var clearedSessions: [PeerID] = []
+        var authenticatedPeerStates: [(peerID: PeerID, payload: Data)] = []
         var deliveries: [(peerID: PeerID, type: NoisePayloadType, payload: Data, timestamp: Date)] = []
         /// Ordered side-effect log to assert recovery sequencing.
         var events: [String] = []
@@ -62,6 +63,9 @@ struct BLENoisePacketHandlerTests {
                 recorder.clearedSessions.append(peerID)
                 recorder.events.append("clearSession")
             },
+            handleAuthenticatedPeerState: { peerID, payload in
+                recorder.authenticatedPeerStates.append((peerID, payload))
+            },
             deliverNoisePayload: { peerID, type, payload, timestamp in
                 recorder.deliveries.append((peerID, type, payload, timestamp))
             }
@@ -221,6 +225,24 @@ struct BLENoisePacketHandlerTests {
         #expect(recorder.initiatedHandshakes.isEmpty)
     }
 
+    @Test
+    func authenticatedPeerStateIsConsumedByTransportNotDeliveredToUI() {
+        let recorder = Recorder()
+        recorder.decryptResult = .success(Data([
+            NoisePayloadType.authenticatedPeerState.rawValue,
+            0x01, 0x02, 0x03
+        ]))
+        let handler = makeHandler(recorder: recorder)
+        let packet = makeEncryptedPacket(recipientID: Data(hexString: localPeerID.id))
+
+        handler.handleEncrypted(packet, from: remotePeerID)
+
+        #expect(recorder.authenticatedPeerStates.count == 1)
+        #expect(recorder.authenticatedPeerStates.first?.peerID == remotePeerID)
+        #expect(recorder.authenticatedPeerStates.first?.payload == Data([0x01, 0x02, 0x03]))
+        #expect(recorder.deliveries.isEmpty)
+    }
+
     @Test
     func emptyDecryptedPayloadIsIgnored() {
         let recorder = Recorder()