Refactor depth surface and image cutout nodes for improved functionality and clarity

- Removed deprecated tests and code related to shell wall connections and coincident sheets.
- Updated attribute handling in depth surface and image cutout groups, including new vector attribute functions.
- Enhanced the inflation logic in the image depth cutout group to better manage shell and balloon behaviors.
- Improved parameter naming and descriptions for clarity in the user interface.
- Streamlined the geometry processing logic to ensure better performance and maintainability.

tests/tools/nodes/test_inventory.py

@@ -83,7 +83,8 @@ def test_geometry_attribute_contract_includes_nested_groups():
         "UVMap": ("FLOAT2", "CORNER"),
         "o_balloon": ("FLOAT", "POINT"),
         "_o_anyimage_depth_cut": ("BOOLEAN", "CORNER"),
-        "_o_anyimage_symmetry_weld": ("BOOLEAN", "POINT"),
+        "_o_solid_normal": ("FLOAT_VECTOR", "POINT"),
+        "_o_symmetry_weld": ("BOOLEAN", "FACE"),
         "o_depth_rotation": ("FLOAT_VECTOR", "FACE"),
         "o_depth_face": ("FLOAT", "FACE"),
         "o_depth_axis": ("FLOAT", "FACE"),