Add ASR interim results support in Assistant model and API

- Introduced `asr_interim_enabled` field in the Assistant model to control interim ASR results.
- Updated AssistantBase and AssistantUpdate schemas to include the new field.
- Modified the database schema to add the `asr_interim_enabled` column.
- Enhanced runtime metadata to reflect interim ASR settings.
- Updated API endpoints and tests to validate the new functionality.
- Adjusted documentation to include details about interim ASR results configuration.

api/tests/test_assistants.py

@@ -27,6 +27,7 @@ class TestAssistantAPI:
         assert data["voiceOutputEnabled"] is True
         assert data["firstTurnMode"] == "bot_first"
         assert data["generatedOpenerEnabled"] is False
+        assert data["asrInterimEnabled"] is False
         assert data["botCannotBeInterrupted"] is False
         assert "id" in data
         assert data["callCount"] == 0
@@ -37,6 +38,7 @@ class TestAssistantAPI:
         response = client.post("/api/assistants", json=data)
         assert response.status_code == 200
         assert response.json()["name"] == "Minimal Assistant"
+        assert response.json()["asrInterimEnabled"] is False
 
     def test_get_assistant_by_id(self, client, sample_assistant_data):
         """Test getting a specific assistant by ID"""
@@ -68,6 +70,7 @@ class TestAssistantAPI:
             "prompt": "You are an updated assistant.",
             "speed": 1.5,
             "voiceOutputEnabled": False,
+            "asrInterimEnabled": True,
             "manualOpenerToolCalls": [
                 {"toolName": "text_msg_prompt", "arguments": {"msg": "请选择服务类型"}}
             ],
@@ -79,6 +82,7 @@ class TestAssistantAPI:
         assert data["prompt"] == "You are an updated assistant."
         assert data["speed"] == 1.5
         assert data["voiceOutputEnabled"] is False
+        assert data["asrInterimEnabled"] is True
         assert data["manualOpenerToolCalls"] == [
             {"toolName": "text_msg_prompt", "arguments": {"msg": "请选择服务类型"}}
         ]
@@ -213,6 +217,7 @@ class TestAssistantAPI:
             "prompt": "runtime prompt",
             "opener": "runtime opener",
             "manualOpenerToolCalls": [{"toolName": "text_msg_prompt", "arguments": {"msg": "欢迎"}}],
+            "asrInterimEnabled": True,
             "speed": 1.1,
         })
         assistant_resp = client.post("/api/assistants", json=sample_assistant_data)
@@ -232,6 +237,7 @@ class TestAssistantAPI:
         assert metadata["services"]["llm"]["model"] == sample_llm_model_data["model_name"]
         assert metadata["services"]["asr"]["model"] == sample_asr_model_data["model_name"]
         assert metadata["services"]["asr"]["baseUrl"] == sample_asr_model_data["base_url"]
+        assert metadata["services"]["asr"]["enableInterim"] is True
         expected_tts_voice = f"{sample_voice_data['model']}:{sample_voice_data['voice_key']}"
         assert metadata["services"]["tts"]["voice"] == expected_tts_voice
         assert metadata["services"]["tts"]["baseUrl"] == sample_voice_data["base_url"]
@@ -309,6 +315,7 @@ class TestAssistantAPI:
         assert runtime_resp.status_code == 200
         metadata = runtime_resp.json()["sessionStartMetadata"]
         assert metadata["output"]["mode"] == "text"
+        assert metadata["services"]["asr"]["enableInterim"] is False
         assert metadata["services"]["tts"]["enabled"] is False
 
     def test_runtime_config_dashscope_voice_provider(self, client, sample_assistant_data):
@@ -373,6 +380,17 @@ class TestAssistantAPI:
         asr = metadata["services"]["asr"]
         assert asr["provider"] == "dashscope"
         assert asr["baseUrl"] == "wss://dashscope.aliyuncs.com/api-ws/v1/realtime"
+        assert asr["enableInterim"] is False
+
+    def test_runtime_config_defaults_asr_interim_disabled_without_asr_model(self, client, sample_assistant_data):
+        assistant_resp = client.post("/api/assistants", json=sample_assistant_data)
+        assert assistant_resp.status_code == 200
+        assistant_id = assistant_resp.json()["id"]
+
+        runtime_resp = client.get(f"/api/assistants/{assistant_id}/runtime-config")
+        assert runtime_resp.status_code == 200
+        metadata = runtime_resp.json()["sessionStartMetadata"]
+        assert metadata["services"]["asr"]["enableInterim"] is False
 
     def test_assistant_interrupt_and_generated_opener_flags(self, client, sample_assistant_data):
         sample_assistant_data.update({