feat: 整合开发历史 (#20)，大更新。。。

models/events/message.py

@@ -6,6 +6,7 @@
 from dataclasses import dataclass, field
 from typing import List, Optional
 
+from core.permission_manager import ADMIN, OP, USER
 from models.message import MessageSegment
 from models.sender import Sender
 from .base import OneBotEvent, EventType
@@ -32,6 +33,11 @@ class MessageEvent(OneBotEvent):
     消息事件基类
     """
 
+    # 权限级别常量，用于装饰器参数
+    ADMIN = ADMIN
+    OP = OP
+    USER = USER
+
     message_type: str
     """消息类型: private (私聊), group (群聊)"""