feat: Add AI Refine option for Balloon tool and implement refinement process with BEN2

src/snapform/properties.py

@@ -228,6 +228,17 @@ def balloon_reuse_material_property():
     )
 
 
+def balloon_ai_refine_property():
+    return bpy.props.BoolProperty(
+        name="AI Refine",
+        description=(
+            "Use BEN2 Alpha above 0.5 to refine the lasso before building "
+            "the Balloon"
+        ),
+        default=False,
+    )
+
+
 def balloon_radial_zoom_property(scale):
     return bpy.props.FloatVectorProperty(
         size=2,
@@ -241,6 +252,7 @@ class SnapFormSettings(bpy.types.PropertyGroup):
     balloon_thickness: balloon_thickness_property()
     balloon_resolution: balloon_resolution_property()
     balloon_reuse_material: balloon_reuse_material_property()
+    balloon_ai_refine: balloon_ai_refine_property()
     balloon_thickness_radial_zoom: balloon_radial_zoom_property(100.0)
     balloon_resolution_radial_zoom: balloon_radial_zoom_property(1000.0)
     input_path: bpy.props.StringProperty(