perf(test): speed up cron schedule suite

src/cron/service.every-jobs-fire.test.ts

@@ -1,7 +1,7 @@
 import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
-import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { afterAll, afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
 import type { CronEvent } from "./service.js";
 import { CronService } from "./service.js";
 
@@ -12,13 +12,25 @@ const noopLogger = {
   error: vi.fn(),
 };
 
+let fixtureRoot = "";
+let caseId = 0;
+
+beforeAll(async () => {
+  fixtureRoot = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-cron-"));
+});
+
+afterAll(async () => {
+  if (fixtureRoot) {
+    await fs.rm(fixtureRoot, { recursive: true, force: true });
+  }
+});
+
 async function makeStorePath() {
-  const dir = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-cron-"));
+  const dir = path.join(fixtureRoot, `case-${caseId++}`);
+  await fs.mkdir(dir, { recursive: true });
   return {
     storePath: path.join(dir, "cron", "jobs.json"),
-    cleanup: async () => {
-      await fs.rm(dir, { recursive: true, force: true });
-    },
+    cleanup: async () => {},
   };
 }