fix: remove model_name from normalized API request bodies

The normalized routing layer resolves the model from the URL/connection
context — the caller does not need to send it in the JSON body.

- normalized/chat_models.py: remove 'model': self.model_name from _default_params
- normalized/embeddings.py: remove 'model': self.model_name from both
  embed_documents and aembed_documents request bodies

Author: cosminacho

packages/uipath_langchain_client/src/uipath_langchain_client/clients/normalized/chat_models.py

@@ -155,7 +155,6 @@ def _default_params(self) -> dict[str, Any]:
         }
 
         return {
-            "model": self.model_name,
             **{k: v for k, v in exclude_if_none.items() if v is not None},
             **self.model_kwargs,
         }

packages/uipath_langchain_client/src/uipath_langchain_client/clients/normalized/embeddings.py

@@ -19,7 +19,7 @@ class UiPathEmbeddings(UiPathBaseEmbeddings, Embeddings):
 
     def embed_documents(self, texts: list[str]) -> list[list[float]]:
         response = self.uipath_request(
-            request_body={"input": texts, "model": self.model_name},
+            request_body={"input": texts},
             raise_status_error=True,
         )
         return [r["embedding"] for r in response.json()["data"]]
@@ -29,7 +29,7 @@ def embed_query(self, text: str) -> list[float]:
 
     async def aembed_documents(self, texts: list[str]) -> list[list[float]]:
         response = await self.uipath_arequest(
-            request_body={"input": texts, "model": self.model_name},
+            request_body={"input": texts},
             raise_status_error=True,
         )
         return [r["embedding"] for r in response.json()["data"]]