更新注册方式

backend/auth_service/app/main.py

@@ -147,6 +147,8 @@ async def register_user(user_data: UserCreate, db: AsyncSession = Depends(get_db
             expires_in=3600,
             user=UserResponse.from_orm(user)
         )
+    except HTTPException:
+        raise  # 直接传递 HTTPException（如密码强度不够）
     except Exception as e:
         raise HTTPException(
             status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,