Fix Wi-Fi Aware connectivity and UI integration post-merge

- Replace bindProcessToNetwork with bindSocket for VPN compatibility.
- Implement Scoped IPv6 address resolution (aware0) for mesh routing.
- Bridge Wi-Fi Aware incoming messages to AppStateStore for UI visibility.
- Fix syntax errors and variable name conflicts in Debug UI.

app/src/main/java/com/bitchat/android/MainActivity.kt

@@ -170,6 +170,13 @@ class MainActivity : OrientationAwareActivity() {
                     if (running && svc != null) {
                         svc.delegate = object : com.bitchat.android.wifiaware.WifiAwareMeshDelegate {
                             override fun didReceiveMessage(message: com.bitchat.android.model.BitchatMessage) {
+                                if (message.isPrivate) {
+                                    message.senderPeerID?.let { pid -> com.bitchat.android.services.AppStateStore.addPrivateMessage(pid, message) }
+                                } else if (message.channel != null) {
+                                    com.bitchat.android.services.AppStateStore.addChannelMessage(message.channel, message)
+                                } else {
+                                    com.bitchat.android.services.AppStateStore.addPublicMessage(message)
+                                }
                                 chatViewModel.didReceiveMessage(message)
                             }
                             override fun didUpdatePeerList(peers: List<String>) {

app/src/main/java/com/bitchat/android/ui/debug/DebugSettingsManager.kt

@@ -36,9 +36,6 @@ class DebugSettingsManager private constructor() {
     private val _packetRelayEnabled = MutableStateFlow(true)
     val packetRelayEnabled: StateFlow<Boolean> = _packetRelayEnabled.asStateFlow()
 
-    private val _packetRelayEnabled = MutableStateFlow(true)
-    val packetRelayEnabled: StateFlow<Boolean> = _packetRelayEnabled.asStateFlow()
-
     // Master transport toggles
     private val _bleEnabled = MutableStateFlow(true)
     val bleEnabled: StateFlow<Boolean> = _bleEnabled.asStateFlow()

app/src/main/java/com/bitchat/android/ui/debug/DebugSettingsSheet.kt

@@ -52,7 +52,7 @@ fun DebugSettingsSheet(
     val verboseLogging by manager.verboseLoggingEnabled.collectAsState()
     val gattServerEnabled by manager.gattServerEnabled.collectAsState()
     val gattClientEnabled by manager.gattClientEnabled.collectAsState()
-    val packetRelayEnabled by manager.packetRelayEnabled.collectAsState()
+    val packetRelayed by manager.packetRelayEnabled.collectAsState()
     val maxOverall by manager.maxConnectionsOverall.collectAsState()
     val maxServer by manager.maxServerConnections.collectAsState()
     val maxClient by manager.maxClientConnections.collectAsState()
@@ -280,7 +280,7 @@ fun DebugSettingsSheet(
                             Icon(Icons.Filled.PowerSettingsNew, contentDescription = null, tint = Color(0xFFFF9500))
                             Text(stringResource(R.string.debug_packet_relay), fontFamily = FontFamily.Monospace, fontSize = 14.sp, fontWeight = FontWeight.Medium)
                             Spacer(Modifier.weight(1f))
-                            Switch(checked = packetRelayEnabled, onCheckedChange = { manager.setPacketRelayEnabled(it) })
+                            Switch(checked = packetRelayed, onCheckedChange = { manager.setPacketRelayEnabled(it) })
                         }
                         // Removed aggregate labels; we will show per-direction compact labels below titles
                         // Toggle: overall vs per-connection vs per-peer

app/src/main/java/com/bitchat/android/wifi-aware/WifiAwareMeshService.kt

@@ -619,7 +619,7 @@ class WifiAwareMeshService(private val context: Context) {
             }
             override fun onLost(network: Network) {
                 networkCallbacks.remove(peerId)
-                Log.d(TAG, "SERVER: network lost for \${peerId.take(8)}…")
+                Log.d(TAG, "SERVER: network lost for ${peerId.take(8)}…")
             }
         }
 
@@ -656,11 +656,13 @@ class WifiAwareMeshService(private val context: Context) {
     ) {
         // TCP keep-alive pings
         serviceScope.launch {
-            val os = client.getOutputStream()
-            while (peerSockets.containsKey(peerId)) {
-                try { os.write(0) } catch (_: IOException) { break }
-                delay(2_000)
-            }
+            try {
+                val os = client.getOutputStream()
+                while (peerSockets.containsKey(peerId)) {
+                    try { os.write(0) } catch (_: IOException) { break }
+                    delay(2_000)
+                }
+            } catch (_: Exception) {}
         }
         // Discovery keep-alive
         serviceScope.launch {
@@ -711,14 +713,7 @@ class WifiAwareMeshService(private val context: Context) {
             override fun onCapabilitiesChanged(network: Network, nc: NetworkCapabilities) {
                 if (peerSockets.containsKey(peerId)) return
                 val info = (nc.transportInfo as? WifiAwareNetworkInfo) ?: return
-                val addr = info.peerIpv6Addr as Inet6Address
-
-                val lp = cm.getLinkProperties(network)
-                val iface = lp?.interfaceName
-
-                try {
-                    val sock = Socket()
-                    network.bindSocket(sock)
+                val addr = info.peerIpv6Addr as? Inet6Address ?: return
 
                 val lp = cm.getLinkProperties(network)
                 val iface = lp?.interfaceName
@@ -731,13 +726,17 @@ class WifiAwareMeshService(private val context: Context) {
 
                     // Use scoped IPv6 if interface name is available
                     val scopedAddr = if (iface != null && addr.scopeId == 0) {
-                        Inet6Address.getByAddress(null, addr.address, java.net.NetworkInterface.getByName(iface))
+                        try {
+                            Inet6Address.getByAddress(null, addr.address, java.net.NetworkInterface.getByName(iface))
+                        } catch (e: Exception) {
+                            addr
+                        }
                     } else {
                         addr
                     }
 
                     sock.connect(java.net.InetSocketAddress(scopedAddr, port), 7000)
-                    Log.d(TAG, "CLIENT: TCP connected to \${peerId.take(8)}… addr=\$scopedAddr:\$port (iface=\$iface)")
+                    Log.d(TAG, "CLIENT: TCP connected to ${peerId.take(8)}… addr=$scopedAddr:$port (iface=$iface)")
 
                     peerSockets[peerId] = sock
                     try { peerManager.setDirectConnection(peerId, true) } catch (_: Exception) {}
@@ -776,11 +775,13 @@ class WifiAwareMeshService(private val context: Context) {
     ) {
         // TCP keep-alive
         serviceScope.launch {
-            val os = sock.getOutputStream()
-            while (peerSockets.containsKey(peerId)) {
-                try { os.write(0) } catch (_: IOException) { break }
-                delay(2_000)
-            }
+            try {
+                val os = sock.getOutputStream()
+                while (peerSockets.containsKey(peerId)) {
+                    try { os.write(0) } catch (_: IOException) { break }
+                    delay(2_000)
+                }
+            } catch (_: Exception) {}
         }
         // Discovery keep-alive
         serviceScope.launch {
@@ -1047,9 +1048,7 @@ class WifiAwareMeshService(private val context: Context) {
                 senderID = myPeerID,
                 payload = tlvPayload
             )
-            val signed = encryptionService.signData(announcePacket.toBinaryDataForSigning()!!)?.let {
-                announcePacket.copy(signature = it)
-            } ?: announcePacket
+            val signed = signPacketBeforeBroadcast(announcePacket)
 
             broadcastPacket(RoutedPacket(signed))
             try { gossipSyncManager.onPublicPacketSeen(signed) } catch (_: Exception) { }
@@ -1074,9 +1073,7 @@ class WifiAwareMeshService(private val context: Context) {
             senderID = myPeerID,
             payload = tlvPayload
         )
-        val signed = encryptionService.signData(packet.toBinaryDataForSigning()!!)?.let {
-            packet.copy(signature = it)
-        } ?: packet
+        val signed = signPacketBeforeBroadcast(packet)
 
         broadcastPacket(RoutedPacket(signed))
         peerManager.markPeerAsAnnouncedTo(peerID)