feat(minor): customize postinstall behavior

[giladgd]

Description of change

• feat: customize postinstall behavior (documentation: Customizing postinstall Behavior)
• feat: support NVFP4 quants

Pull-Request Checklist

• Code is up-to-date with the master branch
• npm run format to apply eslint formatting
• npm run test passes with this change
• This pull request links relevant issues as Fixes #0000
• There are new or updated unit tests validating the change
• Documentation has been updated to reflect this change
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