HubAI conversion + deprecate blobconverter + ConvertOnTrainEnd callback that exports and archives#337

Draft

dtronmans wants to merge 14 commits intomainfrom

feat/hubai-conversion

Commits on Jan 8, 2026

Initial work for HubAI conversion and replacing ArchiveOnTrainEnd and ExportOnTrainEnd with ConvertOnTrainEnd
dtronmans
committed

Commits on Jan 12, 2026

Commits on Jan 14, 2026

Fix tests, model/variant conditional upload, delete remote model is now a parameter and by default is False
dtronmans
committed

Commits on Jan 16, 2026

Proper flow and model -> variant -> version uploads
dtronmans
committed