refactor(db): 修复异步连接池无界增长，并完成 SQLAlchemy 2.0 迁移与分层归位 (#6320)

app/api/endpoints/agent.py

@@ -32,10 +32,11 @@ from app.command import Command
 from app.runtime.config import global_vars, settings
 from app.runtime.events import Event, EventManager
 from app.db import get_async_db
-from app.db.agentchat_oper import AgentChatOper
+from app.db.oper.agentchat import AgentChatOper
 from app.db.models import User
 from app.db.models.agentchat import AgentChat
-from app.db.user_oper import UserOper, get_current_active_user
+from app.db.oper.user import UserOper
+from app.api.deps import get_current_active_user
 from app.application.messaging.agent import attach_web_agent_edit_queue, detach_web_agent_edit_queue
 from app.application.messaging.interaction import agent_interaction_manager, media_interaction_manager
 from app.runtime.localization import LocaleHelper