fix: update download api

[namchuai]

Describe Your Changes

• Allow user to specify their desired model_id.
• Add a thread safe data structure for DownloadTaskQueue. Working on refactor DownloadService to use new DownloadTaskQueue to support parallel download.
• Clean up alias API.

Self Checklist

• Added relevant comments, esp in complex areas
• Updated docs (for bug fixes / features)
• Created issues for follow-up changes or refactoring needed

[github-actions]

Preview URL: https://8dffaa6b.cortex-docs.pages.dev

[louis-jan]

This change broke Jan's cortex because it blocks custom engine path support. @vansangpfiev @namchuai

[dan-menlo]

This change broke Jan's cortex because it blocks custom engine path support. @vansangpfiev @namchuai

@louis-jan @vansangpfiev @namchuai Can I understand this a bit more in detail - what does it mean by blocking custom engine path support?

Does this mean we have to revert?

[louis-jan]

This change broke Jan's cortex because it blocks custom engine path support. @vansangpfiev @namchuai

@louis-jan @vansangpfiev @namchuai Can I understand this a bit more in detail - what does it mean by blocking custom engine path support?

Does this mean we have to revert?

Hey @dan-homebrew guys fixed it already. Applications embed Cortex, which bundles engines that aren't fixed at ~/cortex/engines since engines install won't be done in run-time. They could be mac-arm/engines, mac-intel/engines, or windows/engines or pre-packaged. And they can point to the corresponding engine at runtime via env or args.