添加对 peewee 的旧数据库的兼容层，初步重构插件的 database API

src/dream/dream_agent.py

@@ -3,7 +3,7 @@ import random
 import time
 from typing import Any, Dict, List, Optional, Tuple
 
-from peewee import fn
+from sqlalchemy import func as fn
 
 from src.common.logger import get_logger
 from src.config.config import global_config, model_config