refactor: 推进后端分层架构治理

app/db/models/plugindata.py

@@ -3,13 +3,8 @@ from sqlalchemy import String, JSON, Index, delete, select
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import Mapped, Session, mapped_column
 
-from app.db import (
-    db_query,
-    db_update,
-    async_db_query,
-    get_id_column,
-    Base,
-)
+from app.db.base import get_id_column, Base
+from app.db.decorators import db_query, db_update, async_db_query
 
 
 class PluginData(Base):