fixes not disconnecting bug

internal/client/share.go

@@ -306,8 +306,9 @@ func (sm *ShareManager) handleReleaseDevice(busID, fromClient string) {
 
 	// Notify client
 	sm.client.SendJSON(&protocol.DeviceReleased{
-		Type:  protocol.MsgDeviceReleased,
-		BusID: busID,
+		Type:     protocol.MsgDeviceReleased,
+		BusID:    busID,
+		ClientID: sm.client.ID(),
 	})
 
 	log.Printf("[share] device %s released", busID)

internal/client/use.go

@@ -425,6 +425,38 @@ func (um *UseManager) handleDeviceDenied(msg *protocol.DeviceDenied) {
 
 func (um *UseManager) handleDeviceReleased(msg *protocol.DeviceReleased) {
 	log.Printf("[use] device released by share client: %s", msg.BusID)
+
+	um.mu.Lock()
+	// Find and clean up any attached device matching this BusID (and ClientID if provided)
+	for key, dev := range um.attached {
+		if dev.BusID != msg.BusID {
+			continue
+		}
+		if msg.ClientID != "" && dev.ClientID != msg.ClientID {
+			continue
+		}
+
+		// Clean up tunnel
+		if tunnel, ok := um.tunnels[dev.TunnelID]; ok {
+			close(tunnel.done)
+			if tunnel.conn != nil {
+				tunnel.conn.Close()
+			}
+			delete(um.tunnels, dev.TunnelID)
+		}
+
+		// Detach from VHCI
+		if dev.VHCIPort >= 0 {
+			if err := usbip.DetachDevice(dev.VHCIPort); err != nil {
+				log.Printf("[use] warning: VHCI detach error for force-released device: %v", err)
+			}
+		}
+
+		delete(um.attached, key)
+		log.Printf("[use] device %s cleaned up (force-released by share client)", key)
+		break
+	}
+	um.mu.Unlock()
 }
 
 func (um *UseManager) handleTunnelData(tunnelID string, data []byte) {

internal/protocol/messages.go

@@ -106,8 +106,9 @@ type ReleaseDevice struct {
 
 // DeviceReleased is sent when a device is released
 type DeviceReleased struct {
-	Type  string `json:"type"`
-	BusID string `json:"bus_id"`
+	Type     string `json:"type"`
+	BusID    string `json:"bus_id"`
+	ClientID string `json:"client_id,omitempty"`
 }
 
 // ForceRelease is sent by use clients to force-release a device from another user