fix: 优化电脑端弹窗尺寸并彻底修复系统更新排队调度卡死问题

tests/update-api.test.ts

@@ -1,5 +1,5 @@
 import { afterEach, beforeEach, describe, expect, it } from "vitest";
-import { chmodSync, mkdtempSync, readFileSync, statSync, rmSync } from "node:fs";
+import { chmodSync, existsSync, mkdtempSync, readFileSync, statSync, rmSync } from "node:fs";
 import { tmpdir } from "node:os";
 import path from "node:path";
 import { randomUUID } from "node:crypto";
@@ -190,4 +190,21 @@ describe("更新 API", () => {
     const audit = database.sqlite.prepare("SELECT outcome FROM audit_events WHERE action='update.apply_requested' ORDER BY id DESC LIMIT 1").get() as { outcome: string } | undefined;
     expect(audit?.outcome).toBe("failure");
   });
+  it("管理员可主动取消排队中的更新任务并清理请求文件", async () => {
+    const session = await login("update-cancel");
+    mockRelease();
+    await app.inject({ method: "POST", url: "/api/update/check", headers: { origin: config.publicOrigin, cookie: session.cookies, "x-csrf-token": session.csrf }, payload: {} });
+    const applied = await app.inject({ method: "POST", url: "/api/update/apply", headers: { origin: config.publicOrigin, cookie: session.cookies, "x-csrf-token": session.csrf }, payload: { version: "1.2.0", confirm: true } });
+    expect(applied.statusCode).toBe(202);
+    expect(existsSync(config.updateRequestPath)).toBe(true);
+
+    const cancelRes = await app.inject({ method: "POST", url: "/api/update/cancel", headers: { origin: config.publicOrigin, cookie: session.cookies, "x-csrf-token": session.csrf }, payload: {} });
+    expect(cancelRes.statusCode).toBe(200);
+    expect(cancelRes.json().success).toBe(true);
+    expect(existsSync(config.updateRequestPath)).toBe(false);
+
+    const statusRes = await app.inject({ method: "GET", url: "/api/update/status", headers: { cookie: session.cookies } });
+    expect(statusRes.statusCode).toBe(200);
+    expect(statusRes.json().job).toBeNull();
+  });
 });