Accept .gz suffix for nii.gz uploads

app.py

@@ -118,7 +118,9 @@ def diagnose(ct_file):
 demo = gr.Interface(
     fn=diagnose,
     inputs=gr.File(
-        label="Abdominal CT (.nii.gz)", file_types=[".nii", ".nii.gz"]
+        # ".gz" not ".nii.gz": Gradio matches Path.suffix ("gz"), so the compound form never validates.
+        # diagnose() still enforces .nii/.nii.gz + NIfTI-parseable content server-side.
+        label="Abdominal CT (.nii.gz)", file_types=[".nii", ".gz"]
     ),
     outputs=[gr.Label(label="Top findings", num_top_classes=10), gr.Dataframe(label="All finding scores")],
     title="RADAR Abdominal CT",