Add geometry nodes asset and validation script

- Implemented a new geometry nodes asset in `build_geometry_nodes_asset.py` to handle mesh refinement and topology fixing.
- Created a validation script in `validate_geometry_nodes_asset.py` to ensure the integrity and functionality of the geometry node group.
- Added input handling for various parameters including resolution, iterations, and smoothing options.
- Included checks for node group structure and attributes to validate the geometry processing pipeline.

src/snapform/__init__.py

@@ -7,8 +7,10 @@ from .image_depth import (
     BuildOriginalDepthPlane,
     ConvertImageToDepthPlane,
     RemoveImageBackground,
+    SnapFormImageMenu,
     draw_image_context_menu,
 )
+from .image_mesh import BuildImageMesh, ConvertImageToMesh
 from .operators import (
     CancelJob,
     ControlHost,
@@ -34,11 +36,14 @@ CLASSES = (
     RunJob,
     CancelJob,
     ControlHost,
+    SnapFormImageMenu,
     ApplyRemovedBackground,
     RemoveImageBackground,
     BuildDepthPlane,
     BuildOriginalDepthPlane,
     ConvertImageToDepthPlane,
+    BuildImageMesh,
+    ConvertImageToMesh,
     HostPanel,
     ModelsPanel,
     DebugPanel,