fix：修改了文件结构

src/plugins/storage/storage.py

@@ -0,0 +1,52 @@
+from typing import Union
+
+from ...common.database import db
+from ..chat.message import MessageSending, MessageRecv
+from ..chat.chat_stream import ChatStream
+from src.common.logger import get_module_logger
+
+logger = get_module_logger("message_storage")
+
+
+class MessageStorage:
+    async def store_message(self, message: Union[MessageSending, MessageRecv], chat_stream: ChatStream) -> None:
+        """存储消息到数据库"""
+        try:
+            message_data = {
+                "message_id": message.message_info.message_id,
+                "time": message.message_info.time,
+                "chat_id": chat_stream.stream_id,
+                "chat_info": chat_stream.to_dict(),
+                "user_info": message.message_info.user_info.to_dict(),
+                "processed_plain_text": message.processed_plain_text,
+                "detailed_plain_text": message.detailed_plain_text,
+                "memorized_times": message.memorized_times,
+            }
+            db.messages.insert_one(message_data)
+        except Exception:
+            logger.exception("存储消息失败")
+
+    async def store_recalled_message(self, message_id: str, time: str, chat_stream: ChatStream) -> None:
+        """存储撤回消息到数据库"""
+        if "recalled_messages" not in db.list_collection_names():
+            db.create_collection("recalled_messages")
+        else:
+            try:
+                message_data = {
+                    "message_id": message_id,
+                    "time": time,
+                    "stream_id": chat_stream.stream_id,
+                }
+                db.recalled_messages.insert_one(message_data)
+            except Exception:
+                logger.exception("存储撤回消息失败")
+
+    async def remove_recalled_message(self, time: str) -> None:
+        """删除撤回消息"""
+        try:
+            db.recalled_messages.delete_many({"time": {"$lt": time - 300}})
+        except Exception:
+            logger.exception("删除撤回消息失败")
+
+
+# 如果需要其他存储相关的函数，可以在这里添加