File sessionUsageService.test.ts

src/node/services/sessionUsageService.test.ts:None–None

import { describe, it, expect, beforeEach, afterEach } from "bun:test";
import { SessionUsageService, type SessionUsageTokenStatsCacheV1 } from "./sessionUsageService";
import type { HistoryService } from "./historyService";
import type { Config } from "@/node/config";