refactor(model): remove redundant model parameter from CommonModel initialization

remove unused model parameter from CommonModel constructor and update
overload signatures to use concise syntax

this change simplifies the CommonModel initialization by removing the
redundant model parameter that was being passed but not properly used
in the initialization logic, while also updating the overload signatures
to use more concise syntax

fixes inconsistencies in model parameter handling and cleans up the
API surface

Refactor: remove redundant model parameter from CommonModel

移除 CommonModel 初始化中多余的 model 参数

将重载签名更新为使用更简洁的语法

此更改通过删除传递但未在初始化逻辑中正确使用的冗余 model 参数来简化
CommonModel 初始化，同时将重载签名更新为使用更简洁的语法

修复了 model 参数处理中的不一致并清理了 API 表面

重构：从 CommonModel 中移除冗余的模型参数

Change-Id: I18803899a09f96103b413a91bd99355204ac970f
Signed-off-by: OhYee <oyohyee@oyohyee.com>

Author: OhYee

agentrun/integration/builtin/model.py

@@ -77,15 +77,13 @@ def model(
 
     if isinstance(input, ModelProxy):
         return CommonModel(
-            model=model or "",
             model_obj=input,
             backend_type=BackendType.PROXY,
             specific_model=model,
             config=config,
         )
     elif isinstance(input, ModelService):
         return CommonModel(
-            model=model or "",
             model_obj=input,
             backend_type=BackendType.SERVICE,
             specific_model=model,

agentrun/integration/utils/model.py

@@ -19,13 +19,11 @@ class CommonModel:
 
     def __init__(
         self,
-        model: Optional[str],
         model_obj: Union[ModelService, ModelProxy],
         backend_type: Optional[BackendType] = None,
         specific_model: Optional[str] = None,
         config: Optional[Config] = None,
     ):
-        self.model = model
         self.model_obj = model_obj
         self.backend_type = backend_type
         self.specific_model = specific_model

tests/unittests/integration/test_integration.py

@@ -86,6 +86,7 @@ def extract_payload(request):
         def build_response(request, route):
             payload = extract_payload(request)
             is_stream = payload.get("stream", False)
+            assert payload.get("model") == "mock-model-proxy"
             response_json = self._build_response(
                 payload.get("messages") or [], payload.get("tools")
             )
@@ -355,8 +356,6 @@ def get_mocked_model(
         )
         m = model("fake-llm-model")
 
-        assert m.model == "fake-llm-model"
-
         return m
 
     def test_langchain(self, monkeypatch, mock_llm_transport):