Describe the bug
npm run build:seller results in a failed build and error message.

Use case and programming language
Project fails to build on Windows since chmod is not a windows command.

Relevant code section

• use-cases\amazon-data-kiosk-mcp-server\packages\seller-server\package.json (line 11)

"scripts": {
    "build": "tsc && chmod 755 build/index.js",
    ...
  }

To reproduce
Steps to reproduce the behavior:

1. cd use-cases\amazon-data-kiosk-mcp-server\
2. npm run build:seller

Expected behavior
A successful build output or to fail gracefully in a Windows environment.

Screenshots, logs, or other

'chmod' is not recognized as an internal or external command, operable program or batch file.