import { assert, it } from "@effect/vitest"; import { ProviderInstanceId } from "@t3tools/contracts";import { createModelSelection } from "@t3tools/shared/model"; import { getCodexServiceTierOptionValue } from "./codexModelOptions.ts"; it("returns the selected Codex service tier id", () => {  const selection = createModelSelection(ProviderInstanceId.make("codex"), "gpt-5.5", [    { id: "serviceTier", value: "flex" },  ]);   assert.equal(getCodexServiceTierOptionValue(selection), "flex");}); it("keeps legacy persisted fast mode selections working", () => {  const selection = createModelSelection(ProviderInstanceId.make("codex"), "gpt-5.4", [    { id: "fastMode", value: true },  ]);   assert.equal(getCodexServiceTierOptionValue(selection), "fast");});