feat(update-center): 实现集中式软件更新中心功能

新增更新中心模块，支持管理 APM 和传统 deb 软件更新任务
- 添加更新任务队列管理、状态跟踪和日志记录功能
- 实现更新项忽略配置持久化存储
- 新增更新确认对话框和迁移提示
- 优化主窗口关闭时的任务保护机制
- 添加单元测试覆盖核心逻辑

electron/main/backend/install-manager.ts

@@ -31,7 +31,7 @@ export const tasks = new Map<number, InstallTask>();
 
 let idle = true; // Indicates if the installation manager is idle
 
-const checkSuperUserCommand = async (): Promise<string> => {
+export const checkSuperUserCommand = async (): Promise<string> => {
   let superUserCmd = "";
   const execAsync = promisify(exec);
   if (process.getuid && process.getuid() !== 0) {
@@ -251,8 +251,9 @@ ipcMain.on("queue-install", async (event, download_json) => {
   if (origin === "spark") {
     // Spark Store logic
     if (upgradeOnly) {
-      execCommand = "pkexec";
-      execParams.push("spark-update-tool", pkgname);
+      execCommand = superUserCmd || SHELL_CALLER_PATH;
+      if (superUserCmd) execParams.push(SHELL_CALLER_PATH);
+      execParams.push("aptss", "install", "-y", pkgname, "--only-upgrade");
     } else {
       execCommand = superUserCmd || SHELL_CALLER_PATH;
       if (superUserCmd) execParams.push(SHELL_CALLER_PATH);