feat(cutout): implement boundary padding for cutout textures

- Introduced a new `Boundary Padding` preference in the Cutout Tool with a default of 2 px and a configurable range of 1-4 px.
- Updated the Cutout client to establish inward mapping from the final Mask, sampling in a fixed direction and processing independent material RGBA and Depth.
- Enhanced the handling of RGBA and Depth during cutout operations, ensuring proper mapping and preservation of source data.
- Added tests to validate the new boundary padding functionality and its integration with existing cutout processes.

feat(geometry): remove overall mesh smoothing from geometry nodes

- Removed the `Smooth` input from several geometry node groups to eliminate unnecessary overall mesh smoothing.
- Retained `Smooth Weight` for depth nodes while removing it from Cutout and Relief Plane nodes.
- Ensured that boundary, normal, and fill smoothing behaviors remain intact and consistent.
- Updated tests and documentation to reflect the changes in node interfaces and behaviors.

feat(normals): scale tangent normals with depth

- Reused the existing `o_normal_reduction` attribute to adjust Tangent Normal strength based on the geometry's `Depth Scale`.
- Ensured that Tangent Normal strength is consistent with the geometry depth, preserving full strength for materials that do not provide the attribute.
- Updated tests to verify the correct behavior of normal strength adjustments in both Tangent and Object Space.

tests/anyimage/operators/test_ai_image_operators.py

@@ -5,18 +5,9 @@ from tests.support.blender import BlenderTestCase
 
 
 class AiImageOperatorsTest(BlenderTestCase):
-    def test_upscale_operator_defaults_to_wdn_and_sends_selected_model(self):
+    def test_upscale_operator_sends_the_selected_model(self):
         operator_type = self.upscale.UpscaleImage
         self.assertIn(operator_type, self.anyimage.CLASSES)
-        self.assertEqual(
-            operator_type.__annotations__["model"]["default"],
-            "REALESRGAN_GENERAL_WDN_X4V3",
-        )
-        self.assertEqual(
-            operator_type.__annotations__["max_input_size"]["default"],
-            2048,
-        )
-
         self.assertIn(self.runtime.JobOperatorBase, operator_type.__mro__)
         self.assertEqual(operator_type.bl_options, {"UNDO"})
         operator = operator_type()