fix(cgo): resolve memory leaks in C string handling

* Fixed memory leaks by ensuring proper deallocation of C-allocated strings in `ime_darwin.go` and `window_darwin.go`.
* Added error handling for nil pointers when retrieving current input methods and active window names.
* Updated language files to include new performance profiling options for memory.

wox.core/plugin/system/app/app_darwin.go

@@ -437,7 +437,12 @@ func (a *MacRetriever) getRunningProcesses() (infos []processInfo) {
 			//only show user process
 			continue
 		}
-		appPath := C.GoString(C.get_process_path(pid))
+		cPath := C.get_process_path(pid)
+		if cPath == nil {
+			continue
+		}
+		appPath := C.GoString(cPath)
+		C.free(unsafe.Pointer(cPath))
 		if appPath == "" {
 			continue
 		}

wox.core/plugin/system/sys.go

@@ -140,6 +140,28 @@ func (r *SysPlugin) Init(ctx context.Context, initParams plugin.InitParams) {
 			},
 		})
 
+		r.commands = append(r.commands, SysCommand{
+			Title: "i18n:plugin_sys_performance_memory_profiling",
+			Icon:  plugin.CPUProfileIcon,
+			Action: func(ctx context.Context, actionContext plugin.ActionContext) {
+				memoryProfPath := path.Join(util.GetLocation().GetWoxDataDirectory(), "memory.prof")
+				f, err := os.Create(memoryProfPath)
+				if err != nil {
+					util.GetLogger().Info(ctx, "failed to create memory profile file: "+err.Error())
+					return
+				}
+
+				util.GetLogger().Info(ctx, "start memory profile")
+				profileErr := pprof.WriteHeapProfile(f)
+				if profileErr != nil {
+					util.GetLogger().Info(ctx, "failed to start memory profile: "+profileErr.Error())
+					return
+				}
+
+				util.GetLogger().Info(ctx, "memory profile saved to "+memoryProfPath)
+			},
+		})
+
 		r.commands = append(r.commands, SysCommand{
 			Title: "i18n:plugin_sys_delete_image_cache",
 			Icon:  common.NewWoxImageEmoji("🗑️"),

wox.core/resource/lang/en_US.json

@@ -203,6 +203,7 @@
   "plugin_sys_open_wox_settings": "Open Wox Settings",
   "plugin_sys_open_system_settings": "Open System Settings",
   "plugin_sys_performance_cpu_profiling": "Performance CPU profiling",
+  "plugin_sys_performance_memory_profiling": "Performance Memory profiling",
   "plugin_sys_delete_image_cache": "Delete all image cache",
   "plugin_sys_open_plugin_settings": "Open %s settings",
   "plugin_websearch_trigger_keyword": "keyword",

wox.core/resource/lang/pt_BR.json

@@ -201,6 +201,7 @@
   "plugin_sys_open_wox_settings": "Abrir configurações do Wox",
   "plugin_sys_open_system_settings": "Abrir configurações do sistema",
   "plugin_sys_performance_cpu_profiling": "Perfil de desempenho da CPU",
+  "plugin_sys_performance_memory_profiling": "Perfil de desempenho de memória",
   "plugin_sys_delete_image_cache": "Excluir todo o cache de imagem",
   "plugin_sys_open_plugin_settings": "Abrir configurações do plugin %s",
   "plugin_websearch_trigger_keyword": "Palavra-chave",

wox.core/resource/lang/ru_RU.json

@@ -201,6 +201,7 @@
   "plugin_sys_open_wox_settings": "Открыть настройки Wox",
   "plugin_sys_open_system_settings": "Открыть системные настройки",
   "plugin_sys_performance_cpu_profiling": "Профилирование производительности ЦП",
+  "plugin_sys_performance_memory_profiling": "Профилирование производительности памяти",
   "plugin_sys_delete_image_cache": "Удалить весь кэш изображений",
   "plugin_sys_open_plugin_settings": "Открыть настройки %s",
   "plugin_websearch_trigger_keyword": "ключевое слово",

wox.core/resource/lang/zh_CN.json

@@ -203,6 +203,7 @@
   "plugin_sys_open_wox_settings": "打开Wox设置",
   "plugin_sys_open_system_settings": "打开系统设置",
   "plugin_sys_performance_cpu_profiling": "性能 CPU 分析",
+  "plugin_sys_performance_memory_profiling": "性能 内存 分析",
   "plugin_sys_delete_image_cache": "删除所有图片缓存",
   "plugin_sys_open_plugin_settings": "打开 %s 设置",
   "plugin_websearch_trigger_keyword": "关键字",

wox.core/util/ime/ime_darwin.go

@@ -29,7 +29,14 @@ func SwitchInputMethodABC() error {
 			errorChan <- err
 		})
 
-		inputMethod := C.GoString(C.getCurrentInputMethod())
+		// Fix memory leak: properly free the C-allocated string
+		cInputMethod := C.getCurrentInputMethod()
+		if cInputMethod == nil {
+			errorChan <- errors.New("failed to get current input method")
+			return
+		}
+		inputMethod := C.GoString(cInputMethod)
+		C.free(unsafe.Pointer(cInputMethod))
 		if inputMethod == "" {
 			errorChan <- errors.New("failed to get current input method")
 			return

wox.core/util/window/window_darwin.go

@@ -37,6 +37,10 @@ func GetActiveWindowIcon() (image.Image, error) {
 
 func GetActiveWindowName() string {
 	name := C.getActiveWindowName()
+	if name == nil {
+		return ""
+	}
+	defer C.free(unsafe.Pointer(name))
 	return C.GoString(name)
 }
 

wox.core/util/window/window_windows.go

@@ -51,11 +51,13 @@ func GetActiveWindowIcon() (image.Image, error) {
 
 func GetActiveWindowName() string {
 	cStr := C.getActiveWindowName()
+	if cStr == nil {
+		return ""
+	}
+	defer C.free(unsafe.Pointer(cStr))
 	length := C.int(C.strlen(cStr))
 	bytes := C.GoBytes(unsafe.Pointer(cStr), length)
-	str := string(bytes)
-	C.free(unsafe.Pointer(cStr))
-	return str
+	return string(bytes)
 }
 
 func GetActiveWindowPid() int {