enh: enable deepgram smart_format

backend/open_webui/routers/audio.py

@@ -628,7 +628,7 @@ def transcription_handler(request, file_path, metadata):
 
             # Make request to Deepgram API
             r = requests.post(
-                "https://api.deepgram.com/v1/listen",
+                "https://api.deepgram.com/v1/listen?smart_format=true",
                 headers=headers,
                 params=params,
                 data=file_data,