Fix Pydantic model conversion and remove Railway dependency

main.py

@@ -378,7 +378,7 @@ async def find_schemes(request: SchemeRequest):
         return ApiResponse(
             success=True,
             message="Schemes found successfully",
-            data=response
+            data=response.model_dump() if hasattr(response, 'model_dump') else response
         )
     except Exception as e:
         logger.error(f"Scheme search failed: {str(e)}")

main_streamlit.py

@@ -8,9 +8,9 @@ load_dotenv()
 st.set_page_config(layout="wide", page_title="Jan-Contract Unified Assistant", page_icon="⚖️")
 
 # Backend Configuration
-# Default to the production Railway URL
-PRODUCTION_URL = "https://jan-contract-production.up.railway.app"
-default_url = os.getenv("BACKEND_URL", PRODUCTION_URL)
+# Default to local server (run with: python -m uvicorn main:app --port 8000)
+LOCAL_URL = "http://localhost:8000"
+default_url = os.getenv("BACKEND_URL", LOCAL_URL)
 
 with st.sidebar:
     with st.expander("⚙️ Connection Settings"):