feat: add TUI progress bar for mainframe xpublic zip download

[asimtahir-karakus-kd]

The purpose of this PR is to show the developer the progress of the download of the mainframe xpublic zip

[Copilot]

Pull Request Overview

This PR introduces a terminal progress bar for the MainFrame Xpublic ZIP download and updates development dependencies.

• Updates sass version and removes the fibers dependency in package.json.
• Adds download progress bar logic and improved error handling in streempublic.js.

Reviewed Changes

Copilot reviewed 2 out of 4 changed files in this pull request and generated 3 comments.

File	Description
package.json	Removed fibers and tightened sass version range.
lib/commands/serve/streempublic.js	Implemented a TUI progress bar, added error listeners, and refined console output.

Comments suppressed due to low confidence (1)

package.json:114

• The fibers dependency was removed—ensure no code paths still rely on it, as this could break existing synchronous logic.

  "devDependencies": {