fix: improve maintenance and synchronize live conversations

backend/app/utils/agno_utils.py

@@ -19,11 +19,10 @@ from agno.agent import Agent
 from agno.models.openai import OpenAIChat
 from openai import AsyncOpenAI, OpenAI
 from app.core.logger import get_logger
-from app.core.config import settings
 from app.core.outbound_http import guarded_async_http_client, guarded_http_client
 from app.core.outbound_policy import check_outbound_target, public_only
 from app.utils.agno_patches import apply_agno_patches
-from typing import Dict, Any, Optional, List
+from typing import Dict, Any, Optional
 from fastapi import HTTPException
 
 logger = get_logger(__name__)