Fix runtime crashes and reduce excessive logging

- Fix Dictionary crash in ChatViewModel by adding deduplication logic for peer IDs
- Fix compilation errors: PeerData -> BitchatPeer type correction
- Fix Task async context issue with cancellables
- Remove excessive debug logging for handshake coordination
- Remove repetitive keep-alive timer logs
- Remove version cache logging spam

bitchat/Noise/NoiseHandshakeCoordinator.swift

@@ -85,8 +85,6 @@ class NoiseHandshakeCoordinator {
             // Check role
             let role = determineHandshakeRole(myPeerID: myPeerID, remotePeerID: remotePeerID)
             if role != .initiator {
-                SecureLogger.log("Not initiator for handshake with \(remotePeerID) (my: \(myPeerID), their: \(remotePeerID))", 
-                               category: SecureLogger.handshake, level: .debug)
                 return false
             }
             

bitchat/Services/BluetoothMeshService.swift

@@ -6356,15 +6356,11 @@ extension BluetoothMeshService: CBPeripheralManagerDelegate {
                       let currentPeerID = fingerprintToPeerID[fingerprint],
                       currentPeerID == peerID else {
                     // This peer ID has rotated, skip it
-                    SecureLogger.log("Skipping keepalive for rotated peer ID: \(peerID)", 
-                                   category: SecureLogger.session, level: .debug)
                     return nil
                 }
                 
                 // Check if we actually have a Noise session with this peer
                 guard noiseService.hasEstablishedSession(with: peerID) else {
-                    SecureLogger.log("Skipping keepalive for \(peerID) - no established session", 
-                                   category: SecureLogger.session, level: .debug)
                     return nil
                 }
                 
@@ -6372,21 +6368,15 @@ extension BluetoothMeshService: CBPeripheralManagerDelegate {
             }
         }
         
-        SecureLogger.log("Keep-alive timer: checking \(connectedPeers.count) peers for pings", 
-                       category: SecureLogger.session, level: .debug)
         
         for peerID in connectedPeers {
             // Don't spam if we recently heard from them
             let lastHeard = self.peerSessions[peerID]?.lastHeardFromPeer
             if let lastHeard = lastHeard, 
                Date().timeIntervalSince(lastHeard) < keepAliveInterval / 2 {
-                SecureLogger.log("Skipping keepalive for \(peerID) - heard recently", 
-                               category: SecureLogger.session, level: .debug)
                 continue  // Skip if we heard from them in the last 10 seconds
             }
             
-            SecureLogger.log("Sending keepalive ping to \(peerID)", 
-                           category: SecureLogger.session, level: .debug)
             validateNoiseSession(with: peerID)
         }
     }
@@ -6485,8 +6475,6 @@ extension BluetoothMeshService: CBPeripheralManagerDelegate {
         }
         
         // Check with coordinator if we should initiate
-        SecureLogger.log("Checking handshake coordinator - myPeerID: \(myPeerID), remotePeerID: \(peerID), hasPending: \(hasPendingMessages)", 
-                        category: SecureLogger.handshake, level: .debug)
         if !handshakeCoordinator.shouldInitiateHandshake(myPeerID: myPeerID, remotePeerID: peerID, forceIfStale: hasPendingMessages) {
             // Coordinator says no handshake
             
@@ -7107,9 +7095,6 @@ extension BluetoothMeshService: CBPeripheralManagerDelegate {
             // Check version cache for this peer
             if let cached = versionCache[peerID], !cached.isExpired {
                 // Skip negotiation - use cached version
-                SecureLogger.log("📗 Using cached version \(cached.version) for \(peerID) (cached \(Int(Date().timeIntervalSince(cached.cachedAt)))s ago)", 
-                               category: SecureLogger.session, level: .info)
-                
                 negotiatedVersions[peerID] = cached.version
                 versionNegotiationState[peerID] = .ackReceived(version: cached.version)
                 

bitchat/ViewModels/ChatViewModel.swift

@@ -208,7 +208,7 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
             peerManager?.updatePeers()
             
             // Bind peer manager's peer list to our published property
-            peerManager?.$peers
+            let cancellable = peerManager?.$peers
                 .receive(on: DispatchQueue.main)
                 .sink { [weak self] peers in
                     SecureLogger.log("📱 UI: Received \(peers.count) peers from PeerManager", 
@@ -221,7 +221,7 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
                     self?.allPeers = peers
                     // Update peer index for O(1) lookups
                     // Deduplicate peers by ID to prevent crash from duplicate keys
-                    var uniquePeers: [String: PeerData] = [:]
+                    var uniquePeers: [String: BitchatPeer] = [:]
                     for peer in peers {
                         // Keep the first occurrence of each peer ID
                         if uniquePeers[peer.id] == nil {
@@ -242,7 +242,10 @@ class ChatViewModel: ObservableObject, BitchatDelegate {
                         self?.updatePrivateChatPeerIfNeeded()
                     }
                 }
-                .store(in: &cancellables)
+            
+            if let cancellable = cancellable {
+                self.cancellables.insert(cancellable)
+            }
         }
         
         // Set up Noise encryption callbacks