fix: hide stale update failures on status load

tests/update-api.test.ts

@@ -137,6 +137,24 @@ describe("更新 API", () => {
     expect(disabledConfig.updateStrategy).toBe("disabled");
   });
 
+  it("首次进入状态页不会展示历史失败任务，也不会阻断新的检查", async () => {
+    const session = await login("update-history");
+    const admin = database.sqlite.prepare("SELECT id FROM admins WHERE username=?").get("update-history") as { id: string };
+    const now = Date.now();
+    database.sqlite.prepare(`
+      INSERT INTO update_jobs(id, admin_id, operation, status, version, platform, asset_url, error_message, created_at, updated_at)
+      VALUES (?, ?, 'download', 'failed', '1.1.0', ?, 'https://updates.example/old.tar.gz', 'old failure', ?, ?)
+    `).run(randomUUID(), admin.id, detectPlatform().target, now - 60_000, now - 60_000);
+    const initial = await app.inject({ method: "GET", url: "/api/update/status", headers: { cookie: session.cookies } });
+    expect(initial.statusCode).toBe(200);
+    expect(initial.json().job).toBeNull();
+
+    mockRelease();
+    const checked = await app.inject({ method: "POST", url: "/api/update/check", headers: { origin: config.publicOrigin, cookie: session.cookies, "x-csrf-token": session.csrf }, payload: {} });
+    expect(checked.statusCode).toBe(200);
+    expect(checked.json().latest).toMatchObject({ version: "1.2.0", isNewer: true });
+  });
+
   it("更新任务只对发起管理员可见，并隐藏内部错误详情", async () => {
     const owner = await login("update-owner");
     const other = await login("update-other");