[client] close windows when process needs to exit (#4027)

This PR fixes a bug by ensuring that the advanced settings and re-authentication windows are closed appropriately when the main GUI process exits.

- Updated runSelfCommand calls throughout the UI to pass a context parameter.
- Modified runSelfCommand’s signature and its internal command invocation to use exec.CommandContext for proper cancellation handling.

client/ui/client_ui.go

@@ -879,7 +879,7 @@ func (s *serviceClient) onUpdateAvailable() {
 func (s *serviceClient) onSessionExpire() {
 	s.sendNotification = true
 	if s.sendNotification {
-		s.eventHandler.runSelfCommand("login-url", "true")
+		s.eventHandler.runSelfCommand(s.ctx, "login-url", "true")
 		s.sendNotification = false
 	}
 }

client/ui/event_handler.go

@@ -122,7 +122,7 @@ func (h *eventHandler) handleAdvancedSettingsClick() {
 	go func() {
 		defer h.client.mAdvancedSettings.Enable()
 		defer h.client.getSrvConfig()
-		h.runSelfCommand("settings", "true")
+		h.runSelfCommand(h.client.ctx, "settings", "true")
 	}()
 }
 
@@ -130,7 +130,7 @@ func (h *eventHandler) handleCreateDebugBundleClick() {
 	h.client.mCreateDebugBundle.Disable()
 	go func() {
 		defer h.client.mCreateDebugBundle.Enable()
-		h.runSelfCommand("debug", "true")
+		h.runSelfCommand(h.client.ctx, "debug", "true")
 	}()
 }
 
@@ -154,7 +154,7 @@ func (h *eventHandler) handleNetworksClick() {
 	h.client.mNetworks.Disable()
 	go func() {
 		defer h.client.mNetworks.Enable()
-		h.runSelfCommand("networks", "true")
+		h.runSelfCommand(h.client.ctx, "networks", "true")
 	}()
 }
 
@@ -172,14 +172,14 @@ func (h *eventHandler) updateConfigWithErr() {
 	}
 }
 
-func (h *eventHandler) runSelfCommand(command, arg string) {
+func (h *eventHandler) runSelfCommand(ctx context.Context, command, arg string) {
 	proc, err := os.Executable()
 	if err != nil {
 		log.Errorf("error getting executable path: %v", err)
 		return
 	}
 
-	cmd := exec.Command(proc,
+	cmd := exec.CommandContext(ctx, proc,
 		fmt.Sprintf("--%s=%s", command, arg),
 		fmt.Sprintf("--daemon-addr=%s", h.client.addr),
 	)