CHW-8311 HFLFSObjectTooLarge

lfs object exceeds 2GiB cap

Default message: lfs object exceeds 2GiB cap
HTTP status: 413 (client)

Problem. An LFS upload was rejected. Cause. The body exceeds the 2 GiB in-memory cap (maxLFS in huggingface_handlers.go). Fix. Split the artifact, or contact an operator if you need a higher cap; streaming uploads are tracked as a TODO. HTTP 413.