Refactor code structure for improved readability and maintainability

backend/app/services/agent/__init__.py

@@ -1,7 +1,6 @@
-# src/services/agent/__init__.py
 """Agent服务模块"""
 
 from .qa_agent import QAAgent, ask_compliance_question
 from .session_manager import SessionManager, ChatSession
 
-__all__ = ["QAAgent", "ask_compliance_question", "SessionManager", "ChatSession"]
+__all__ = ["QAAgent", "ask_compliance_question", "SessionManager", "ChatSession"]

backend/app/services/agent/qa_agent.py

@@ -1,4 +1,3 @@
-# src/services/agent/qa_agent.py
 """RAG问答Agent - 合规智能问答核心实现"""
 
 import time

backend/app/services/agent/session_manager.py

@@ -1,4 +1,3 @@
-# src/services/agent/session_manager.py
 """多轮对话会话管理"""
 
 import time
@@ -244,4 +243,4 @@ class SessionManager:
     def clear_all_sessions(self):
         """清空所有会话"""
         self._sessions.clear()
-        logger.info("所有会话已清空")
+        logger.info("所有会话已清空")