Explore Bun bundling playground server

[adamziel]

What is this PR doing?

Explores bundling php-wasm-cli and wp-playground-server as single executable files with Bun.

It works for php-wasm-cli:

bash build-php-wasm-cli.sh; ./php-wasm-cli
  [49ms]  minify  -124.74 MB (estimate)
   [7ms]  bundle  83 modules
 [311ms] compile  php-wasm-cli
Usage: php [options] [-f] <file> [--] [args...]
   php [options] -r <code> [--] [args...]
   php [options] [-B <begin_code>] -R <code> [-E <end_code>] [--] [args...]

However, it doesn't yet work for the Playground server:

bash build-playground-server.sh
3 | import url_nightly from './wp-nightly.zip?url';
                            ^
error: Could not resolve: "./wp-nightly.zip?url"
    at playground/packages/playground/wordpress/src/wordpress/get-wordpress-module-details.ts:3:25

I tried calling Bun.build directly, but it doesn't seem to do anything:

await Bun.build({
	entrypoints: [__dirname + '/packages/playground/cli/src/cli.ts'],
	outdir: __dirname + '/out',
	target: 'node',
});
console.log('built');
export {};

# bun build-playground-server.ts; ll out
built

Related to #1289