[bug]: cp cmd in build script not working for windows

[re-Tick]

Is there an existing issue for this?

• I have searched the existing issues

Current behavior

When I try to install the Typescript-SDK on windows, it fails due to unrecognisable "cp" cmd because "copy" is used for copying the files.
Since there is no universal cmd for copy, We should not use that in build script. Reference. We can include a common .proto file in the package.json's "files" field.

Steps to reproduce

1. Try ts-sdk installation.

Environment

None

Version

Self-Hosted

[Hermione2408]

Can you please assign this to me @re-Tick

[re-Tick]

Hi @Hermione2408, you can make your proposal for changes and make PR so that others can also discuss there view points here only.