refactor: frontend (#7097)

* refactor: remove unused window show/hide event listeners

* refactor: deduplicate profile-changed event handling

* refactor: remove unused setupCloseListener from use-listen

* refactor: remove unused removeAllListeners from use-listen

* fix(backend): dedupe profile changed notification on import

* fix: avoid duplicate timer update completed event

* refactor(frontend): simplify proxy switch fallback path

src-tauri/src/cmd/profile.rs

@@ -94,14 +94,6 @@ pub async fn import_profile(url: std::string::String, option: Option<PrfOption>)
         handle::Handle::notify_profile_changed(uid);
     }
 
-    // 异步保存配置文件并发送全局通知
-    if let Some(uid) = &item.uid {
-        // 延迟发送，确保文件已完全写入
-        tokio::time::sleep(Duration::from_millis(100)).await;
-        logging!(info, Type::Cmd, "[导入订阅] 发送配置变更通知: {}", uid);
-        handle::Handle::notify_profile_changed(uid);
-    }
-
     logging!(info, Type::Cmd, "[导入订阅] 导入完成: {}", help::mask_url(&url));
     Ok(())
 }