Fix peer dropdown layout and announcement timing

- Move peer dropdown next to bitchat title
- Add immediate peer announcement on connection
- Fix iOS menu chevron visibility with platform-specific styling
- Force UI updates for join/leave messages
- Add peers to active list immediately on connection
- Remove all announcement delays for instant name resolution

bitchat/Services/BluetoothMeshService.swift

@@ -559,6 +559,9 @@ extension BluetoothMeshService: CBCentralManagerDelegate {
         
         connectedPeripherals[peerID] = peripheral
         print("[DEBUG] Connected to peer: \(peerID)")
+        
+        // Add to active peers immediately
+        activePeers.insert(peerID)
         print("[DEBUG] Active peers: \(activePeers)")
         
         // Update peer list to show we're connecting
@@ -622,10 +625,7 @@ extension BluetoothMeshService: CBPeripheralDelegate {
                 peripheral.setNotifyValue(true, for: characteristic)
                 peripheralCharacteristics[peripheral] = characteristic
                 
-                // Send key exchange and announce immediately
-                DispatchQueue.main.async { [weak self] in
-                    guard let self = self else { return }
-                    
+                // Send key exchange and announce immediately without any delay
                 let publicKeyData = self.encryptionService.publicKey.rawRepresentation
                 let packet = BitchatPacket(
                     type: MessageType.keyExchange.rawValue,
@@ -643,8 +643,6 @@ extension BluetoothMeshService: CBPeripheralDelegate {
                 
                 // Send announce packet immediately after key exchange
                 if let vm = self.delegate as? ChatViewModel {
-                        DispatchQueue.main.async { [weak self] in
-                            guard let self = self else { return }
                     let announcePacket = BitchatPacket(
                         type: MessageType.announce.rawValue,
                         senderID: self.myPeerID.data(using: .utf8)!,
@@ -661,8 +659,6 @@ extension BluetoothMeshService: CBPeripheralDelegate {
             }
         }
     }
-        }
-    }
     
     func peripheral(_ peripheral: CBPeripheral, didUpdateValueFor characteristic: CBCharacteristic, error: Error?) {
         guard let data = characteristic.value,

bitchat/ViewModels/ChatViewModel.swift

@@ -252,6 +252,9 @@ extension ChatViewModel: BitchatDelegate {
         )
         messages.append(systemMessage)
         print("[DEBUG] Added join message, total messages: \(messages.count)")
+        
+        // Force UI update
+        objectWillChange.send()
     }
     
     func didDisconnectFromPeer(_ peerID: String) {
@@ -265,6 +268,9 @@ extension ChatViewModel: BitchatDelegate {
         )
         messages.append(systemMessage)
         print("[DEBUG] Added leave message, total messages: \(messages.count)")
+        
+        // Force UI update
+        objectWillChange.send()
     }
     
     func didUpdatePeerList(_ peers: [String]) {

bitchat/Views/ContentView.swift

@@ -106,14 +106,15 @@ struct ContentView: View {
                 .opacity(0)
             } else {
                 // Public chat header
+                HStack(spacing: 12) {
                     Text("bitchat")
                         .font(.system(size: 18, weight: .medium, design: .monospaced))
                         .foregroundColor(textColor)
                     
-                Spacer()
-                
                     // Peer status section
                     peerStatusView
+                        .frame(maxWidth: 120)
+                }
                 
                 Spacer()
                 
@@ -188,7 +189,11 @@ struct ContentView: View {
                 }
             }
         }
+        #if os(macOS)
         .menuStyle(.borderlessButton)
+        #else
+        .menuStyle(.automatic)
+        #endif
     }
     
     private var messagesView: some View {