feat: Add restore cutout depth extension with edge depth correction

- Introduced a new extension for restoring cutout depth with edge correction.
- Implemented edge depth extension algorithm in `edge_depth.py` to enhance depth accuracy near cutout edges.
- Updated `generate_moge_artifacts` to include an option for extending depth edges during depth generation.
- Modified cutout job processing to enable edge depth extension based on depth request.
- Added comprehensive tests for edge depth functionality, ensuring correct behavior under various scenarios.
- Updated existing node loading functions to remove asset revision dependencies, simplifying the loading process.
- Created new design and proposal documentation outlining the goals and decisions for the extension.

tests/anyimage/operators/test_panorama_conversion.py

@@ -81,17 +81,16 @@ def artifacts(tmp_path, source):
 
 def test_result_replaces_source_with_zero_rotation_and_shadeless_material(source, artifacts, monkeypatch):
     result, operator = artifacts
-    saved = bpy.data.node_groups.new("O Image Depth Panorama", "GeometryNodeTree")
-    saved["anyimage_asset_revision"] = 11
+    from anyimage.common.node import load_node_group
+    saved = load_node_group("O Image Depth Panorama")
     matrix = Matrix.Translation((2, -3, 4)) @ Matrix.Rotation(0.6, 4, "Y") @ Matrix.Diagonal((2, 3, 4, 1))
     source.matrix_world = matrix
     source.empty_image_offset = (0.3, -0.8)
     undo = Mock(return_value={"FINISHED"})
     monkeypatch.setattr(conversion, "bpy", SimpleNamespace(data=bpy.data, ops=SimpleNamespace(ed=SimpleNamespace(undo_push=undo))))
     obj = conversion.create_panorama_from_result(bpy.context, result, operator)
-    assert obj.modifiers[0].node_group != saved
-    assert obj.modifiers[0].node_group["anyimage_asset_revision"] == 15
-    assert saved in bpy.data.node_groups.values() and saved["anyimage_asset_revision"] == 11
+    assert obj.modifiers[0].node_group == saved
+    assert saved.name == "O Image Depth Panorama"
     assert obj.name == operator.source_object_name and obj.type == "MESH"
     np.testing.assert_allclose(obj.location, matrix.translation, atol=1e-6)
     np.testing.assert_allclose(obj.scale, matrix.to_scale(), atol=1e-6)