Implement iOS-compatible Direct Peer Detection (TTL Logic) (#574)

* Clean up direct peer detection logic (Max TTL) and remove unrelated routing/media changes

* cleanup fix

app/src/main/java/com/bitchat/android/mesh/BluetoothConnectionManager.kt

@@ -85,10 +85,6 @@ class BluetoothConnectionManager(
     // Public property for address-peer mapping
     val addressPeerMap get() = connectionTracker.addressPeerMap
 
-    // Expose first-announce helpers to higher layers
-    fun noteAnnounceReceived(address: String) { connectionTracker.noteAnnounceReceived(address) }
-    fun hasSeenFirstAnnounce(address: String): Boolean = connectionTracker.hasSeenFirstAnnounce(address)
-    
     init {
         powerManager.delegate = this
         // Observe debug settings to enforce role state while active