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_cutout_operators.py

@@ -129,6 +129,7 @@ class CutoutOperatorsTest(BlenderTestCase):
                     alpha_threshold=0.25,
                     fine_outline=False,
                     color_image="Color",
+                    boundary_padding=2.0,
                     gesture="POLYLINE",
                     report=operator.report,
                 )
@@ -312,22 +313,6 @@ class CutoutOperatorsTest(BlenderTestCase):
         self.assertEqual(parameters["normal_mode"], "OBJECT")
 
 
-    def test_cutout_geometry_settings_use_configured_moge(self):
-        preferences = SimpleNamespace(
-            geometry_model="MOGE2_VITB_NORMAL",
-            geometry_resolution_level=7,
-        )
-        with patch.object(self.cutout_main, "addon_preferences", return_value=preferences), patch.object(
-            self.anyimage.preferences, "addon_preferences", return_value=preferences
-        ):
-            settings = self.cutout_main.cutout_geometry_settings(None)
-
-        self.assertEqual(
-            settings,
-            ("MOGE2_VITB_NORMAL", 7),
-        )
-
-
     def test_cutout_tool_settings_gate_normal_generation(self):
         class Row:
             def __init__(self, events):
@@ -409,6 +394,7 @@ class CutoutOperatorsTest(BlenderTestCase):
         operator.edge_length = 0.1
         operator.generate_normal = True
         operator._selection_mask = selection_mask
+        operator.boundary_padding = 3.5
         result = SimpleNamespace(value={}, file=lambda _key: Path(__file__))
 
         with (
@@ -446,3 +432,4 @@ class CutoutOperatorsTest(BlenderTestCase):
         self.assertIs(create_shape.call_args.kwargs["color_image"], color_image)
         self.assertEqual(create_shape.call_args.kwargs["alpha_threshold"], 0.25)
         self.assertIs(create_shape.call_args.kwargs["fine_outline"], False)
+        self.assertEqual(create_shape.call_args.kwargs["boundary_padding"], 3.5)