Revert "feat(tui): load external plugin exports"

This reverts commit fdd6498909.

packages/cli/test/plugin-host.test.ts

@@ -1,56 +0,0 @@
-import { afterEach, describe, expect, test } from "bun:test"
-import path from "path"
-import { createPluginHost } from "../src/plugin-host"
-
-const directories: string[] = []
-
-afterEach(async () => {
-  await Promise.all(directories.splice(0).map((directory) => Bun.$`rm -rf ${directory}`.quiet()))
-})
-
-describe("plugin host", () => {
-  test("loads the tui export from a local package", async () => {
-    const directory = await temp()
-    await Bun.write(
-      path.join(directory, "package.json"),
-      JSON.stringify({ type: "module", exports: { "./tui": "./src/tui.js" } }),
-    )
-    await Bun.write(
-      path.join(directory, "src/tui.js"),
-      "export default { id: 'example.tui', setup() { return () => {} } }",
-    )
-
-    const plugin = await createPluginHost(async () => undefined).load(directory, directory)
-
-    expect(plugin?.id).toBe("example.tui")
-  })
-
-  test("loads a package resolver tui entrypoint", async () => {
-    const directory = await temp()
-    const entrypoint = path.join(directory, "tui.js")
-    await Bun.write(entrypoint, "export default { id: 'npm.tui', setup() {} }")
-
-    const plugin = await createPluginHost(async (spec) => {
-      expect(spec).toBe("example-plugin")
-      return entrypoint
-    }).load("example-plugin", directory)
-
-    expect(plugin?.id).toBe("npm.tui")
-  })
-
-  test("reports invalid tui exports without terminating the host", async () => {
-    const directory = await temp()
-    const entrypoint = path.join(directory, "tui.js")
-    await Bun.write(entrypoint, "export default { id: 'invalid' }")
-    const host = createPluginHost(async () => entrypoint)
-
-    expect(host.load("invalid-plugin", directory)).rejects.toThrow("Invalid V2 TUI plugin module: invalid-plugin")
-    expect(await host.load("unsupported-plugin", directory).catch(() => undefined)).toBeUndefined()
-  })
-})
-
-async function temp() {
-  const directory = await Bun.$`mktemp -d`.text()
-  directories.push(directory.trim())
-  return directory.trim()
-}