fix(ovhcloud): use explicit None check for seconds field in STT response

Replaces falsy or with explicit is not None check so that a valid
seconds=0.0 value is not silently dropped during field migration.

Addresses Greptile review feedback on #26595

litellm/llms/ovhcloud/audio_transcription/transformation.py

@@ -160,7 +160,11 @@ class OVHCloudAudioTranscriptionConfig(BaseAudioTranscriptionConfig):
         # `duration` is replaced by `seconds` in STT responses.
         # Prefer `seconds`, fall back to `duration`, normalize to `duration`
         # so downstream consumers see a consistent key.
-        duration = response_json.get("seconds") or response_json.get("duration")
+        duration = (
+            response_json["seconds"]
+            if "seconds" in response_json and response_json["seconds"] is not None
+            else response_json.get("duration")
+        )
         if duration is not None:
             response_json["duration"] = duration
 

tests/test_litellm/llms/ovhcloud/test_ovhcloud_audio_transcription_transformation.py

@@ -96,4 +96,19 @@ class TestOVHCloudDurationFieldMigration:
         result = config.transform_audio_transcription_response(mock_response)
 
         assert result.text == "Hello world"
-        assert result._hidden_params["duration"] == 2.71
+        assert result._hidden_params["duration"] == 2.71
+
+
+
+    def test_seconds_zero_mapped_to_duration(self):
+        """seconds=0.0 must not be treated as falsy and lost."""
+        from litellm.llms.ovhcloud.audio_transcription.transformation import (
+            OVHCloudAudioTranscriptionConfig,
+        )
+        from unittest.mock import MagicMock
+
+        config = OVHCloudAudioTranscriptionConfig()
+        mock_response = MagicMock()
+        mock_response.json.return_value = {"text": "silence", "seconds": 0.0}
+        result = config.transform_audio_transcription_response(mock_response)
+        assert result._hidden_params["duration"] == 0.0