add:基础插件框架

Ink Canvas/App.xaml.cs

@@ -1,5 +1,6 @@
 using H.NotifyIcon;
 using Ink_Canvas.Helpers;
+using Ink_Canvas.Plugins;
 using Ink_Canvas.Properties;
 using iNKORE.UI.WPF.Modern.Controls;
 using Microsoft.Win32;
@@ -1161,6 +1162,24 @@ namespace Ink_Canvas
                 LogHelper.WriteLogToFile($"初始化上传帮助类时出错: {ex.Message}", LogHelper.LogType.Error);
             }
 
+            // 加载插件
+            try
+            {
+                LogHelper.WriteLogToFile("开始加载插件");
+                var pluginsDir = Path.Combine(RootPath, "Plugins");
+                if (!Directory.Exists(pluginsDir))
+                {
+                    Directory.CreateDirectory(pluginsDir);
+                }
+                PluginManager.Instance.SetPluginsDirectory(pluginsDir);
+                await PluginManager.Instance.LoadAllAsync();
+                LogHelper.WriteLogToFile($"插件加载完成，已加载 {PluginManager.Instance.Plugins.Count} 个插件");
+            }
+            catch (Exception ex)
+            {
+                LogHelper.WriteLogToFile($"加载插件时出错: {ex.Message}", LogHelper.LogType.Error);
+            }
+
         }
 
         private void ScrollViewer_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
@@ -1456,14 +1475,25 @@ namespace Ink_Canvas
                 }
 
                 if (IsAppExitByUser)
+            {
+                // 写入退出信号文件，通知看门狗正常退出
+                StartupCount.Reset();
+                File.WriteAllText(watchdogExitSignalFile, "exit");
+                if (watchdogProcess != null && !watchdogProcess.HasExited)
                 {
-                    // 写入退出信号文件，通知看门狗正常退出
-                    StartupCount.Reset();
-                    File.WriteAllText(watchdogExitSignalFile, "exit");
-                    if (watchdogProcess != null && !watchdogProcess.HasExited)
-                    {
-                        watchdogProcess.Kill();
-                    }
+                    watchdogProcess.Kill();
+                }
+            }
+
+                // 卸载所有插件
+                try
+                {
+                    PluginManager.Instance.UnloadAll();
+                    LogHelper.WriteLogToFile("插件已全部卸载");
+                }
+                catch (Exception ex)
+                {
+                    LogHelper.WriteLogToFile($"卸载插件时出错: {ex.Message}", LogHelper.LogType.Error);
                 }
             }
             catch (Exception ex)