import { Effect } from "effect"; import { AppExecutorError } from "../executor/app-tool-executor";import type { ToolchainRef } from "./descriptor"; export interface BundleInput {  readonly files: ReadonlyMap<string, string>;  readonly entry: string;} export interface BundleOutput {  readonly code: string;  readonly toolchain?: ToolchainRef;} export interface BundleBackend {  readonly bundle: (input: BundleInput) => Effect.Effect<BundleOutput, AppExecutorError>;  readonly toolchain: () => ToolchainRef;} // The in-process esbuild backend must load lazily: esbuild's Node launcher// reads process.versions at module scope, which the Cloudflare Workers// runtime rejects at deploy validation. Hosts inject their own backend// (native worker-bundler on cloud, workerd worker-bundler on selfhost); only// Node-side tests and bare publish() calls reach this import.export const defaultBundleBackend = (): Effect.Effect<BundleBackend, AppExecutorError> =>  Effect.tryPromise({    try: () => import("./esbuild-bundler").then((module) => module.inProcessBundleBackend()),    catch: (cause) =>      new AppExecutorError({        kind: "bundle",        message: "in-process esbuild bundle backend is unavailable in this runtime",        cause,      }),  }); export const bundleEntry = (  input: BundleInput,  backend?: BundleBackend,): Effect.Effect<BundleOutput, AppExecutorError> =>  backend    ? backend.bundle(input)    : defaultBundleBackend().pipe(Effect.flatMap((resolved) => resolved.bundle(input)));