[Enhancement]: Improve model pull progress display with a progress bar instead of logs

Proposal

This issue is created to address the TODO comment found in the (c *Client) PullModel function, from @mdelapenya

// TODO: use a progressbar instead of multiple line output.

Why is it needed?

• Currently, pulling a model floods the terminal with raw log output. This makes it difficult for users to track the actual download progress and results in a poor user experience.

Proposed Solution

Replace the current line-by-line logging with a progress bar.
This can be achieved by:

• Parsing the JSON stream from the response body to get the download status.
• Using a terminal progress bar library (e.g., github.com/schollz/progressbar/v3) to visually display the progress based on the parsed data.

I'd appreciate any feedback on this proposal. If this sounds like a good idea, I'd be happy to open a Pull Request to implement it.

Start in modules/dockermodelrunner/internal/sdk/client/pull.go at the PullModel function and review the TODO plus its current response handling. Inspect the JSON stream fields that represent download status and evaluate how a terminal progress bar library would consume them. Done means model pulls show progress visually instead of flooding the terminal with line-by-line logs.