feat: 统一 Commilitia Drop 全客户端命名与分发

desktop/platform/notify_windows.go

@@ -4,14 +4,18 @@ package platform
 
 import (
 	"os"
+	"path/filepath"
 	"sync"
 
 	toast "git.sr.ht/~jackmordaunt/go-toast/v2"
+	"golang.org/x/sys/windows/registry"
 )
 
 const (
-	// toastAppID 是 Windows Action Center 里显示的应用标识，与 macOS bundle id 对齐。
-	toastAppID = "net.commilitia.cdrop"
+	// toastAppID 是稳定的内部 AppUserModelID；Windows 通知设置中的用户可见名称由
+	// toastDisplayName 单独写入 DisplayName，避免为了改显示名破坏系统身份。
+	toastAppID       = "net.commilitia.cdrop"
+	toastDisplayName = "Commilitia Drop"
 	// toastGUID 固定不变——它把通知归属到注册表里的本应用条目；更换会让既有通知
 	// 失去归属。
 	toastGUID = "{c4d8e2a1-6b3f-4e7a-9c2d-1f5b8a0e3d6c}"
@@ -19,20 +23,41 @@ const (
 
 var toastInit sync.Once
 
-// Notify shows a native Windows toast. go-toast renders via the WinRT/COM path
-// (PowerShell fallback when the AppID isn't registered), so it works without code
-// signing — SmartScreen only gates the installer, not notifications. Best-effort:
-// errors are swallowed. SetAppData registers the app identity once so the toast
-// shows "cdrop" rather than the PowerShell host.
-func Notify(title, body string) {
+// InitializeNotifications registers the stable Windows notification identity
+// and corrects its user-visible name. It is safe to call repeatedly.
+func InitializeNotifications() {
 	toastInit.Do(func() {
 		data := toast.AppData{AppID: toastAppID, GUID: toastGUID}
 		if exe, err := os.Executable(); err == nil {
 			data.ActivationExe = exe
 		}
 		_ = toast.SetAppData(data)
-	})
 
+		// go-toast v2.0.3 没有独立 DisplayName 字段，会把 AppID 写进
+		// DisplayName，且已有值时不更新；在同一稳定键上显式覆盖显示名。
+		appKey := filepath.Join(
+			"SOFTWARE",
+			"Classes",
+			"AppUserModelId",
+			toastAppID,
+		)
+		if key, err := registry.OpenKey(
+			registry.CURRENT_USER,
+			appKey,
+			registry.SET_VALUE,
+		); err == nil {
+			_ = key.SetStringValue("DisplayName", toastDisplayName)
+			_ = key.Close()
+		}
+	})
+}
+
+// Notify shows a native Windows toast. go-toast renders via the WinRT/COM path
+// (PowerShell fallback when the AppID isn't registered), so it works without code
+// signing — SmartScreen only gates the installer, not notifications. Best-effort:
+// errors are swallowed.
+func Notify(title, body string) {
+	InitializeNotifications()
 	n := toast.Notification{
 		AppID: toastAppID,
 		Title: title,