added ruff test

shared/tests/test_scene3d_live.py

@@ -9,26 +9,17 @@ grow.
 
 from __future__ import annotations
 
-import threading
-import time
-from concurrent.futures import ThreadPoolExecutor
-
 import numpy as np
 import pytest
-
 from orisys_app_shared.scene3d import synthetic
 from orisys_app_shared.scene3d.composer import DISPLAY_ILLUSTRATIVE, SceneComposer
 from orisys_app_shared.scene3d.contracts import (
-    ColorScale,
     DisplaySettings,
     FieldDescriptor,
     FrameIdentity,
-    Quality,
-    RenderFrame,
     SurfaceFieldFrame,
     ThreeDError,
     freeze,
-    rest_descriptor,
 )
 from orisys_app_shared.scene3d.sampling import (
     remap_to_domain,