Фикс: восстановлена загрузка собственного пузырька изображения и стабилизирован хвост / интервал

Rosetta/Core/Network/Protocol/ProtocolManager.swift

@@ -95,12 +95,31 @@ final class ProtocolManager: @unchecked Sendable {
 
     /// Connect to server and perform handshake.
     func connect(publicKey: String, privateKeyHash: String) {
+        let switchingAccount = savedPublicKey != nil && savedPublicKey != publicKey
+        if switchingAccount {
+            Self.logger.info("Account switch detected — resetting protocol session before reconnect")
+            disconnect()
+        }
+
         savedPublicKey = publicKey
         savedPrivateHash = privateKeyHash
 
-        if connectionState == .authenticated || connectionState == .handshaking {
+        switch connectionState {
+        case .authenticated, .handshaking, .deviceVerificationRequired:
             Self.logger.info("Already connected/handshaking, skipping")
             return
+        case .connected:
+            if client.isConnected {
+                Self.logger.info("Socket already connected, skipping duplicate connect()")
+                return
+            }
+        case .connecting:
+            if client.isConnecting {
+                Self.logger.info("Connect already in progress, skipping duplicate connect()")
+                return
+            }
+        case .disconnected:
+            break
         }
 
         connectionState = .connecting
@@ -110,11 +129,20 @@ final class ProtocolManager: @unchecked Sendable {
     func disconnect() {
         Self.logger.info("Disconnecting")
         heartbeatTask?.cancel()
+        heartbeatTask = nil
         handshakeTimeoutTask?.cancel()
+        handshakeTimeoutTask = nil
         pingTimeoutTask?.cancel()
         pingTimeoutTask = nil
         pingVerificationInProgress = false
         handshakeComplete = false
+        clearPacketQueue()
+        clearResultHandlers()
+        syncBatchLock.lock()
+        _syncBatchActive = false
+        syncBatchLock.unlock()
+        pendingDeviceVerification = nil
+        devices = []
         client.disconnect()
         connectionState = .disconnected
         savedPublicKey = nil
@@ -305,6 +333,9 @@ final class ProtocolManager: @unchecked Sendable {
                 Self.logger.error("Disconnected: \(error.localizedDescription)")
             }
             heartbeatTask?.cancel()
+            heartbeatTask = nil
+            handshakeTimeoutTask?.cancel()
+            handshakeTimeoutTask = nil
             handshakeComplete = false
             pingVerificationInProgress = false
             pingTimeoutTask?.cancel()
@@ -650,6 +681,12 @@ final class ProtocolManager: @unchecked Sendable {
         packetQueueLock.unlock()
     }
 
+    private func clearResultHandlers() {
+        resultHandlersLock.lock()
+        resultHandlers.removeAll()
+        resultHandlersLock.unlock()
+    }
+
     // MARK: - Device Verification
 
     private func handleDeviceList(_ packet: PacketDeviceList) {