fix: recover stuck update queue

tests/update.test.ts

@@ -372,6 +372,47 @@ describe("更新安全工具", () => {
     }
   });
 
+  it("队列任务有新请求标记时可被重新检查，标记过期后才回收", async () => {
+    const root = await mkdtemp(path.join(tmpdir(), "tallynote-update-queued-marker-"));
+    let database: ReturnType<typeof openDatabase> | undefined;
+    try {
+      const dataDir = path.join(root, "data");
+      const installPrefix = path.join(root, "install");
+      process.env.TALLYNOTE_DATA_DIR = dataDir;
+      process.env.TALLYNOTE_INSTALL_PREFIX = installPrefix;
+      process.env.TALLYNOTE_PUBLIC_ORIGIN = "http://127.0.0.1:3998";
+      process.env.TALLYNOTE_COOKIE_SECURE = "false";
+      process.env.TALLYNOTE_UPDATE_STRATEGY = "systemd";
+      process.env.TALLYNOTE_UPDATE_METADATA_URL = "https://updates.example/latest";
+      process.env.TALLYNOTE_UPDATE_ALLOWED_HOSTS = "updates.example";
+      process.env.TALLYNOTE_UPDATE_REQUIRE_SIGNATURE = "false";
+      const config = loadConfig();
+      prepareDataDirectories(config);
+      database = openDatabase(config);
+      const staleAt = Date.now() - ORPHANED_UPDATE_TIMEOUT_MS - 1;
+      const jobId = randomUUID();
+      database.sqlite.prepare(`
+        INSERT INTO update_jobs(id, operation, status, version, platform, asset_url, created_at, updated_at)
+        VALUES (?, 'apply', 'queued', '1.2.0', 'linux-x64', ?, ?, ?)
+      `).run(jobId, "https://updates.example/queued.tar.gz", staleAt, staleAt);
+      await writeFile(config.updateRequestPath, JSON.stringify({ jobId, operation: "apply" }));
+      const now = Date.now();
+      await utimes(config.updateRequestPath, new Date(now), new Date(now));
+
+      expect(reconcileOrphanedUpdateJobs(database.sqlite, config, now)).toBe(0);
+      expect(database.sqlite.prepare("SELECT status FROM update_jobs WHERE id=?").get(jobId)).toEqual({ status: "queued" });
+      expect(await stat(config.updateRequestPath)).toBeTruthy();
+
+      const expiredNow = now + ORPHANED_UPDATE_TIMEOUT_MS + 1;
+      expect(reconcileOrphanedUpdateJobs(database.sqlite, config, expiredNow)).toBe(1);
+      expect(database.sqlite.prepare("SELECT status FROM update_jobs WHERE id=?").get(jobId)).toEqual({ status: "failed" });
+      await expect(stat(config.updateRequestPath)).rejects.toThrow();
+    } finally {
+      if (database) database.sqlite.close();
+      await rm(root, { recursive: true, force: true });
+    }
+  });
+
   it("流式解包在展开大小上限前拒绝高压缩比归档，并修正发布树权限", async () => {
     const root = await mkdtemp(path.join(tmpdir(), "tallynote-update-stream-"));
     try {