♻️ Refactor configuration change notification service

frontend/bindings/voidraft/internal/services/models.ts

@@ -12,6 +12,12 @@ import * as http$0 from "../../../net/http/models.js";
 // @ts-ignore: Unused imports
 import * as time$0 from "../../../time/models.js";
 
+/**
+ * CancelFunc 取消订阅函数
+ * 调用此函数可以取消对配置的监听
+ */
+export type CancelFunc = any;
+
 /**
  * HttpRequest HTTP请求结构
  */
@@ -260,6 +266,14 @@ export class OSInfo {
     }
 }
 
+/**
+ * ObserverCallback 观察者回调函数
+ * 参数：
+ *   - oldValue: 配置变更前的值
+ *   - newValue: 配置变更后的值
+ */
+export type ObserverCallback = any;
+
 /**
  * SelfUpdateResult 自我更新结果
  */