🐛 Fixed hotkey crashes

internal/services/hotkey_service_darwin.go

@@ -66,6 +66,7 @@ int isHotkeyRegistered() {
 import "C"
 
 import (
+	"context"
 	"fmt"
 	"sync"
 	"sync/atomic"
@@ -115,14 +116,16 @@ func (hs *HotkeyService) setCancelFunc(cancel context.CancelFunc) {
 // getCancelFunc 原子地获取cancel函数
 func (hs *HotkeyService) getCancelFunc() context.CancelFunc {
 	if cancel := hs.cancelFunc.Load(); cancel != nil {
-		return cancel.(context.CancelFunc)
+		if cancelFunc, ok := cancel.(context.CancelFunc); ok {
+			return cancelFunc
+		}
 	}
 	return nil
 }
 
 // clearCancelFunc 原子地清除cancel函数
 func (hs *HotkeyService) clearCancelFunc() {
-	hs.cancelFunc.Store((*context.CancelFunc)(nil))
+	hs.cancelFunc.Store((context.CancelFunc)(nil))
 }
 
 // NewHotkeyService 创建新的热键服务实例