feat: improve sudo implementation and add disableSudo flag

[msexxeta]

Changes

This PR improves the sudo implementation and adds a new --disableSudo flag:

Features

• Replace complex stdio password piping with printf approach for simpler and more reliable sudo password handling
• Add support for su elevation with persistent root shell
• Add --disableSudo flag to optionally disable sudo functionality
• Add comprehensive sudo-exec tests with su support

Documentation

• Add documentation for --disableSudo flag
• Update sudo-exec tool documentation
• Add documentation for sudo and su password parameters
• Add examples for sudo and su usage

Testing

• Create new focused sudo-exec.test.ts file
• Add tests for sudo authentication scenarios
• Add su elevation test setup and verification
• Enable sudo access in test environment

Docker

• Add SUDO_ACCESS=true to enable sudo in test environment

[tufantunc]

Hi @msexxeta ,
there is a type error in ci tests, can you fix it?

[msexxeta]

my bad, didn't check tsc. fixed

[msexxeta]

you're not using the docker-compose in the tests, that's why they fail, need to add that env variable to have sudo access.

[tufantunc]

Looks cool, thanks for your contribution. Creating new version for npm in a minute.