Fix file sizes, add method figure

Clarify train/test split: 1000 training users vs 50 test users

Update usage code with working inference examples

Replace user weights with matched pairs from uncond_8 and uncond_linear_8 (users 3685-4279)

Move authors below title

Fix tilde formatting in model card

Update model card with project page link and formatting

Upload Premier model weights: mod_adapter, user_embedding, per-user embeddings