Add MAGI-1 library

[jiahy0825]

This PR adds MAGI-1 library

[Vaibhavs10]

Hi @jiahy0825 - Thanks for the PR, couple of quick notes:

1. I see that instead of one model per repo, there are multiple different models in the same repo: https://huggingface.co/sand-ai/MAGI-1/tree/main/ckpt/magi
2. Since all the model repos are diffusers repos, the download tracking should automatically work if these checkpoints were split in 3 repos.

Let me know if you have any questions.

[jiahy0825]

Hi @jiahy0825 - Thanks for the PR, couple of quick notes:

1. I see that instead of one model per repo, there are multiple different models in the same repo: huggingface.co/sand-ai/MAGI-1/tree/main/ckpt/magi
2. Since all the model repos are diffusers repos, the download tracking should automatically work if these checkpoints were split in 3 repos.

Let me know if you have any questions.

Hi, thanks a lot for your reply!

We would like to keep all these models in a single repo because our model pipeline is relatively complex — it involves multiple components like T5, VAE, and others. Having all related models organized within one repo would make it much easier for users to find and use them together.

Therefore, we would prefer to track downloads through this repo via the PR if possible.

Please let me know if you have any better suggestions. Thanks again for your help!