import { test, expect, afterEach } from "bun:test"import path from "path"import fs from "fs/promises"import { Global } from "../../src/global"import { BillingSettingsRoutes } from "../../src/server/routes/settings/billing" const file = path.join(Global.Path.config, "openscience.json") afterEach(async () => {  await fs.rm(file, { force: true }).catch(() => {})}) test("PUT persists the toggle without baking resolved secrets into the config file", async () => {  process.env["SPEND_TOGGLE_TEST_KEY"] = "sk-live-super-secret-123"  await fs.mkdir(Global.Path.config, { recursive: true })  await Bun.write(    file,    JSON.stringify({ provider: { openrouter: { options: { apiKey: "{env:SPEND_TOGGLE_TEST_KEY}" } } } }, null, 2),  )   const res = await BillingSettingsRoutes().request("/", {    method: "PUT",    headers: { "content-type": "application/json" },    body: JSON.stringify({ llm: "byok" }),  })  expect(res.status).toBe(200)  const state = await res.json()  expect(state.llm).toBe("byok")   const text = await Bun.file(file).text()  expect(text).toContain("{env:SPEND_TOGGLE_TEST_KEY}")  expect(text).not.toContain("sk-live-super-secret-123")   const written = JSON.parse(text)  expect(written.billing).toEqual({ llm: "byok" })}) test("PUT llm null sets the toggle back to auto", async () => {  await fs.mkdir(Global.Path.config, { recursive: true })  await Bun.write(file, JSON.stringify({ billing: { llm: "managed" } }, null, 2))   const res = await BillingSettingsRoutes().request("/", {    method: "PUT",    headers: { "content-type": "application/json" },    body: JSON.stringify({ llm: null }),  })  expect(res.status).toBe(200)  const state = await res.json()  expect(state.llm).toBeNull()   const written = JSON.parse(await Bun.file(file).text())  expect(written.billing.llm).toBeNull()})