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.

tools/nodes/groups/image_cutout.py

@@ -155,7 +155,6 @@ def build_image_cutout_group():
     group = bpy.data.node_groups.new(name, 'GeometryNodeTree')
     group.is_modifier, group.use_fake_user = (True, True)
     group.color_tag = 'GEOMETRY'
-    group['anyimage_asset_revision'] = 13
     interface_socket(group, 'Geometry', 'INPUT', 'NodeSocketGeometry')
     interface_socket(group, 'Mode', 'INPUT', 'NodeSocketMenu')
     float_input(group, 'Thickness', 1.0).description = 'Control how much the surface bulges in Balloon mode. Zero removes the bulge.'