Merge #4 Add model vendor names in frontend

Set Bedrock Claude 3.7 as default

Author: athewsey

cx-agent-backend/src/infrastructure/adapters/langgraph_agent_service.py

@@ -39,11 +39,14 @@ def _create_agent(self, agent_type: AgentType, model: str) -> any:
         """Create agent with specific model."""
         from langchain_openai import ChatOpenAI
 
+        # Remove vendor prefix if present (format: vendor/model)
+        processed_model = model.split("/", 1)[-1] if "/" in model else model
+        
         # Create LLM with the specified model
         llm = ChatOpenAI(
             api_key=self._llm_service.api_key,
             base_url=self._llm_service.base_url,
-            model=model,
+            model=processed_model,
             temperature=0.7,
             streaming=True,
         )

cx-agent-frontend/src/components/chat.py

@@ -75,8 +75,9 @@ def render_sidebar():
         model = st.selectbox(
             "Model",
             options=[
-                "gpt-4o-mini",
-                "gpt-4o",
+                "bedrock/us.anthropic.claude-3-7-sonnet-20250219-v1:0",
+                "openai/gpt-4o-mini",
+                "openai/gpt-4o",
                 "bedrock/anthropic.claude-3-5-sonnet-20240620-v1:0",
                 "bedrock/anthropic.claude-3-5-haiku-20241022-v1:0",
             ],