File installation.test.ts

packages/opencode/test/installation/installation.test.ts:None–None

import { describe, expect } from "bun:test"
import { makeGlobalNode } from "@opencode-ai/core/effect/app-node"
import { LayerNode } from "@opencode-ai/core/effect/layer-node"
import { httpClient } from "@opencode-ai/core/effect/app-node-platform"