pub fn find_gguf(dir: &Path) -> Option<PathBuf>Expand description
Locate the backbone GGUF weight file in dir. Returns the
lexicographically-first non-mmproj *.gguf (also the first shard,
*-00001-of-*, of a split file). The mmproj vision sidecar is excluded here
and loaded separately (see sidecar::find_mmproj); a dir that is only an
mmproj falls back to the first file so the caller still gets a path to error
on.