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/server/test_model_inference.py

@@ -19,7 +19,7 @@ class ModelInferenceTest(unittest.TestCase):
         cls.onnx_upscale = load_server_module("models.onnx_upscale")
 
 
-    def test_moge2_batch_releases_only_after_final_image(self):
+    def test_moge2_infers_one_geometry_frame(self):
         prediction = {
             "points": np.ones((2, 2, 3), dtype=np.float32),
             "depth": np.ones((2, 2), dtype=np.float32),
@@ -32,18 +32,15 @@ class ModelInferenceTest(unittest.TestCase):
             "infer_one",
             return_value=prediction,
         ) as infer_one:
-            frames = self.moge2_model.infer(
+            frame = self.moge2_model.infer(
                 FakeModels(),
                 {"model": "MOGE2_VITS_NORMAL", "device": "cpu"},
-                [Path("a.png"), Path("b.png")],
+                Path("input.png"),
                 include_points=True,
             )
 
-        self.assertEqual(len(frames), 2)
-        self.assertEqual(
-            [call.kwargs["release_memory"] for call in infer_one.call_args_list],
-            [False, True],
-        )
+        self.assertEqual(frame.depth.shape, (2, 2))
+        infer_one.assert_called_once()
 
 
     def test_upscale_resource_error_releases_session_and_is_readable(self):