When `bun run --bun` is used, child processes invoking `node` actually
run bun via a symlink. Node.js v22+ supports `node --run <script>` to
run package.json scripts, but bun's fake node mode silently ignored the
`--run` flag and tried to execute the script name as a file path instead.
Detect `--run` in the raw argv and delegate to `RunCommand.exec()` which
already handles package.json script resolution with pre/post scripts.
Closes#27074
Co-Authored-By: Claude <noreply@anthropic.com>
a3df1a8cfd