refactor(db): 将数据库操作异步化

- 将所有 session.add() 改为 await session.add()
- 将所有 session.commit() 改为 await session.commit()
- 将 session.refresh() 改为 await session.refresh()

src/common/database/database.py

@@ -43,7 +43,7 @@ class SQLAlchemyTransaction:
 
     def __exit__(self, exc_type, exc_val, exc_tb):
         if exc_type is None:
-            self.session.commit()
+            self.await session.commit()
         else:
             self.session.rollback()
         self.session.close()