Add new functionality for image rectification and depth metadata handling

- Implemented a preview tool for rectifying images with interactive aspect controls in `preview.py`.
- Added tests for depth metadata loading to ensure consistent schema usage in `test_depth_metadata.py`.
- Developed comprehensive tests for cutout calibration processes in `test_cutout_calibration.py`, including stability checks and depth calibration.
- Created tests for frame compositing operations in `test_frame_compositing.py`, ensuring correct handling of depth and transparency.
- Introduced material slot inheritance functionality in `material_slots.py` to manage geometry material assignments.
- Built shared shader nodes for material processing in `shader.py`, including roughness and bump mapping setups.

tests/anyimage/test_job_operator.py

@@ -99,9 +99,6 @@ class JobOperatorTest(BlenderTestCase):
         self.assertEqual(Path(command[1]).parent.name, "installer")
         self.assertIn("--storage-root", command)
         self.assertIn("--config", command)
-        self.assertNotIn("--venv-dir", command)
-        self.assertNotIn("--models-dir", command)
-        self.assertNotIn("--stages", command)
 
 
     def test_runtime_request_uses_request_response_shape(self):