fix:快捷键问题

Ink Canvas/Helpers/GlobalHotkeyManager.cs

@@ -392,6 +392,13 @@ namespace Ink_Canvas.Helpers
                 }
                 else
                 {
+                    if (_registeredHotkeys.Count == 0)
+                    {
+                        if (ShouldEnableHotkeysBasedOnContext())
+                        {
+                            LoadHotkeysFromSettings();
+                        }
+                    }
                 }
             }
             catch (Exception ex)
@@ -447,6 +454,11 @@ namespace Ink_Canvas.Helpers
                     {
                         // 如果设置允许，则在鼠标模式下也启用快捷键
                         EnableHotkeyRegistration();
+                        
+                        if (_hotkeysShouldBeRegistered && _registeredHotkeys.Count == 0)
+                        {
+                            LoadHotkeysFromSettings();
+                        }
                     }
                     else
                     {
@@ -458,6 +470,11 @@ namespace Ink_Canvas.Helpers
                 {
                     // 非鼠标模式下启用快捷键
                     EnableHotkeyRegistration();
+                    
+                    if (_hotkeysShouldBeRegistered && _registeredHotkeys.Count == 0)
+                    {
+                        LoadHotkeysFromSettings();
+                    }
                 }
             }
             catch (Exception ex)

Ink Canvas/Windows/HotkeySettingsWindow.xaml.cs

@@ -5,6 +5,7 @@ using System.Reflection;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Input;
+using MessageBox = iNKORE.UI.WPF.Modern.Controls.MessageBox;
 
 namespace Ink_Canvas.Windows
 {