bug: models download service - stout `Validating download items`

[gabrielle-ong]

Cortex version

v183

Describe the Bug

While QAing #1242 via postman, sends stdout to CLI in inactive terminal
Validating download items, please wait..

Steps to Reproduce

1. POST models/pull starts download
2. POST models/pull halfway shows downloaded bytes
3. DELETE models/pull stops the download

Screenshots / Logs

No response

What is your OS?

• MacOS
• Windows
• Linux

What engine are you running?

• cortex.llamacpp (default)
• cortex.tensorrt-llm (Nvidia GPUs)
• cortex.onnx (NPUs, DirectML)

[namchuai]

@vansangpfiev is already fixed this one in #1526

[gabrielle-ong]

Marking as complete, thanks @vansangpfiev and @namchuai