migrate from github

internal/constant/notification.go

@@ -0,0 +1,27 @@
+package constant
+
+// Notification type constants.
+const (
+	NotificationType_Comment = "comment"
+	NotificationType_Reply   = "reply"
+	NotificationType_Mention = "mention"
+	NotificationType_System  = "system"
+)
+
+// notificationTitles holds default (zh-CN) titles keyed by notification type.
+// Replace with a proper i18n lookup once multi-language support is added.
+var notificationTitles = map[string]string{
+	NotificationType_Comment: "收到新评论",
+	NotificationType_Reply:   "回复了你的评论",
+	NotificationType_Mention: "在评论中提及了你",
+	NotificationType_System:  "系统通知",
+}
+
+// GetNotificationTitle returns the default title for the given notification type.
+// Falls back to the type string itself if the type is unrecognised.
+func GetNotificationTitle(notifType string) string {
+	if title, ok := notificationTitles[notifType]; ok {
+		return title
+	}
+	return notifType
+}