import shutil
from pathlib import Path

src = Path("storage/proto_lm/archive_backup/checkpoint.pt")
dst = Path("storage/proto_lm/checkpoint.pt")

if src.exists():
    shutil.copy(src, dst)
    print(f"✅ Copied {src} to {dst}")
else:
    print(f"❌ Source file not found: {src}")