대시보드 에러처리 변경

app/database/session.py

@@ -130,6 +130,9 @@ async def get_session() -> AsyncGenerator[AsyncSession, None]:
         try:
             yield session
         except Exception as e:
+            from app.dashboard.exceptions import DashboardException
+            if isinstance(e, DashboardException):
+                raise e
             import traceback
             await session.rollback()
             logger.error(traceback.format_exc())