new: added .pth support

Author: evilsocket

src/core/pytorch/mod.rs

@@ -20,6 +20,7 @@ pub(crate) fn is_pytorch(file_path: &Path) -> bool {
         .to_ascii_lowercase();
 
     file_ext == "pt"
+    || file_ext == "pth"
         || file_name.ends_with("pytorch_model.bin")
         // cases like diffusion_pytorch_model.fp16.bin
         || (file_name.contains("pytorch_model") && file_name.ends_with(".bin"))
@@ -54,6 +55,11 @@ mod tests {
         assert!(is_pytorch(Path::new("path/to/model.pt")));
         assert!(is_pytorch(Path::new("MODEL.PT"))); // Case insensitive
 
+        // Standard .pth extension
+        assert!(is_pytorch(Path::new("model.pth")));
+        assert!(is_pytorch(Path::new("path/to/model.pth")));
+        assert!(is_pytorch(Path::new("MODEL.PTH"))); // Case insensitive
+
         // Standard pytorch_model.bin filename
         assert!(is_pytorch(Path::new("pytorch_model.bin")));
         assert!(is_pytorch(Path::new("path/to/pytorch_model.bin")));