Refactor Cutout Tool to Use World Space Edge Length

- Replaced the Mesh Detail parameter with a new Edge Length property to define cutout sampling in physical units.
- Introduced Minimum Relative Edge Length preference to control effective spacing based on the bounding box of the cutout content.
- Updated tests to validate the new edge length functionality and ensure consistent behavior across different resolutions and canvas sizes.
- Removed deprecated parameters and adjusted related properties to align with the new edge length implementation.
- Enhanced geometry sampling logic to utilize effective world spacing for both standard and fine outline modes.

src/anyimage/operators/cutout_tool/object.py

@@ -26,7 +26,6 @@ from .geometry import (
     CUTOUT_ALPHA_THRESHOLD,
     crop_plane_bounds,
     cutout_cleanup_value,
-    cutout_sampling_spacing,
     selection_calibration,
     world_plane_metric,
 )
@@ -98,7 +97,7 @@ def create_shape_object(
     context,
     source_object,
     shape,
-    point_spacing,
+    edge_length,
     content_values,
     content_bounds,
     base_shape,
@@ -125,7 +124,7 @@ def create_shape_object(
     )
     world_metric, _world_z_scale = world_plane_metric(source_object.matrix_world)
     cleanup_value = cutout_cleanup_value(
-        cutout_sampling_spacing(source_object, point_spacing),
+        edge_length,
         world_metric,
     )
     material = None