Function teavmStubs

teavmStubs(): Plugin
Stubs the Node-only imports inside TeaVM's generated runtime.

The runtime reads a module off disk with import('node:fs/promises') on a branch bytebox never takes, since it drives defaults and never the generated load. esbuild resolves a dynamic import's literal specifier whether the branch can run or not, so a Workers target with no Node builtins fails the whole bundle on unreachable code.

Only imports made by the runtime itself are stubbed, so a project that does use nodejs_compat keeps its own Node imports.

Returns Plugin
Example
```
import { teavmStubs } from 'bytebox/bundler';
import { build } from 'esbuild';

await build({
	entryPoints: ['src/index.ts'],
	outfile: 'dist/index.mjs',
	bundle: true,
	format: 'esm',
	external: ['*.wasm'],
	plugins: [teavmStubs()]
});
```
- Defined in npm/src/bundler.ts:34