transformers

f397b9e6 - [Weight Converter] More fine-grained mappings on classes, scoping for every transforms (including weight converter) (#45661)

[Weight Converter] More fine-grained mappings on classes, scoping for every transforms (including weight converter) (#45661) * mappings on classes, scoping for every transforms * fix style * Fix deduplication removes submodel mappings of the same type * Fix scoped WeightConverter not applied in the correct order, now interleaving renames and converts ops * temp fix paligemma * Fix incompatible mappings between head and base model for VLMs * fix gemma3 mapping * Fix more issues, address reviews * remove class mapping from model mapping deduplication * Fix conversion mappings * nit * fix after review * fix bacticks * update docs + BC for rename_source_key * Fix edge case rename -> convert (fix deepseekv4)