refactor(api): remove unused imports in agent, chat, and streaming modules

src/api/agent_routes.py

@@ -1,10 +1,10 @@
 from datetime import datetime
 import asyncio
 import os
-from fastapi import APIRouter, Depends, HTTPException, status, Header, Request
+from fastapi import APIRouter, Depends, HTTPException, status, Header
 from sqlalchemy.orm import Session
 from src.config.database import get_db
-from typing import List, Dict, Any, Optional
+from typing import List, Dict, Any
 import uuid
 from src.core.jwt_middleware import (
     get_jwt_token,

src/api/chat_routes.py

@@ -28,7 +28,6 @@ from src.services.service_providers import (
 from datetime import datetime
 import logging
 import json
-from fastapi.responses import StreamingResponse
 
 logger = logging.getLogger(__name__)
 

src/services/streaming_service.py

@@ -6,7 +6,6 @@ from datetime import datetime
 from ..schemas.streaming import (
     JSONRPCRequest,
     TaskStatusUpdateEvent,
-    TaskArtifactUpdateEvent,
 )
 from ..services.agent_runner import run_agent
 from ..services.service_providers import (

src/utils/streaming.py

@@ -1,5 +1,5 @@
 import asyncio
-from typing import AsyncGenerator, Optional
+from typing import AsyncGenerator
 from fastapi import HTTPException