* feat(mlx-lm): add de-quant for fuse
* chore: disable quant in to linear when de-quant enabled
* chore: add better error handling for adapter file not found
* chore(mlx-lm): pass max seq len to evaluate in training loop
* chore: make sure the batch seq not exceed max len
* chore: update comment
* chore: add warning before truncate input