fix: radio button visibility by applying 'value' attribute

src/obs_eval_gradio.py

@@ -161,11 +161,8 @@ def show_audio_transcript(video_file, api_key):
 
 
 def change_audio_rubric(choice):
-    if choice == "Video only":
+    if choice.value == "Video + Audio":
         return gr.Textbox(
-            lines=0,    
-            placeholder="(Deprecated)",
-            interactive=False,
             visible=False
         )
     else:
@@ -179,12 +176,9 @@ def change_audio_rubric(choice):
 
 
 def change_audio_eval(choice):
-    if choice == "Video only":
+    if choice.value == "Video only":
         return gr.Textbox(
-            lines=0,  
             visible=False,
-            placeholder="(Deprecated)",
-            interactive=False,
         )
     else:
         return gr.Textbox(