V3 step 1 update models.py and step 2 implement service/worker, and raw API response persistence

tests/providers/test_openrouter.py

@@ -73,6 +73,27 @@ class TestOpenRouterProviderTranscribe:
         assert send_call["x_open_router_title"] == "Transcription App"
         assert result.text == "Transcript text"
 
+    @pytest.mark.asyncio
+    async def test_includes_temperature_and_top_p_when_provided(self):
+        """Transcribe passes configured sampling parameters through to OpenRouter."""
+        response = {"model": "vendor/model-a", "choices": [{"message": {"content": "Transcript text"}}]}
+        client = _FakeClient(response=response)
+        provider = OpenRouterTranscriptionProvider(settings=Settings(openrouter_api_key="test-key"), client=client)
+
+        result = await provider.transcribe(
+            prompt_text="Prompt body",
+            image_bytes=b"img-bytes",
+            mime_type="image/png",
+            temperature=0.2,
+            top_p=0.85,
+        )
+
+        send_call = client.chat.calls[0]
+        assert send_call["temperature"] == 0.2
+        assert send_call["top_p"] == 0.85
+        assert result.temperature == 0.2
+        assert result.top_p == 0.85
+
     @pytest.mark.asyncio
     async def test_parses_successful_response_text(self):
         """Transcribe returns normalized text from a valid response payload."""