Function is_mtp_only_name 

pub fn is_mtp_only_name(name: &str) -> bool

Names that exist ONLY on the MTP layer. Used to locate the MTP layer index from the checkpoint itself rather than assuming one.

🪤 Do not look for mtp.0.*: GLM-5.3 has zero such tensors. Verified by scanning all 120 shard headers of the reference checkpoint.