feat: Claude Code 原生 Windows 通知（C# / .NET 10 + Avalonia 12）

为 Claude Code 提供原生 Windows toast 通知：点击跳回原窗口、切回 Windows Terminal 标签、跨虚拟桌面、调用方图标、非阻塞投递；NativeAOT 单文件分发。
2026-06-22 18:05:15 +08:00
commit 5ce2c8a982
53 changed files with 3889 additions and 0 deletions
@@ -0,0 +1,43 @@
+using System;
+using System.IO;
+
+namespace Notify.Ipc;
+
+/// <summary>
+/// Host 侧：监视 spool 目录，新文件出现即消费并回调
+/// </summary>
+public sealed class SpoolWatcher
+{
+    private readonly Action<NotifyMessage> _onMessage;
+    private FileSystemWatcher? _watcher;
+
+    public SpoolWatcher(Action<NotifyMessage> onMessage) => _onMessage = onMessage;
+
+    public void Start()
+    {
+        Directory.CreateDirectory(NotificationSpool.Dir);
+
+        // 先补弹启动前堆积的请求
+        NotificationSpool.DrainExisting(_onMessage);
+
+        _watcher = new FileSystemWatcher(NotificationSpool.Dir, "*.json")
+        {
+            NotifyFilter = NotifyFilters.FileName,
+            EnableRaisingEvents = true,
+        };
+        _watcher.Created += OnCreated;
+        _watcher.Renamed += OnRenamed;
+    }
+
+    private void OnCreated(object sender, FileSystemEventArgs e) => Handle(e.FullPath);
+
+    private void OnRenamed(object sender, RenamedEventArgs e) => Handle(e.FullPath);
+
+    private void Handle(string path)
+    {
+        if (NotificationSpool.ReadAndRemove(path) is { } msg)
+        {
+            _onMessage(msg);
+        }
+    }
+}