Skip incompatible objects instead of failing IFC join operation

When joining objects with mismatched representation types, deselect and
skip incompatible objects rather than canceling the entire operation.
This allows users to join compatible objects even when the selection
includes incompatible ones.

src/bonsai/bonsai/bim/module/geometry/operator.py

@@ -2063,6 +2063,7 @@ class OverrideJoin(bpy.types.Operator, tool.Ifc.Operator):
                 return position
 
             items = list(representation.Items)
+            skipped_objects = []
             for obj in context.selected_editable_objects:
                 if obj == self.target:
                     continue
@@ -2082,12 +2083,8 @@ class OverrideJoin(bpy.types.Operator, tool.Ifc.Operator):
                 assert obj_rep
                 if obj_rep.RepresentationType != representation_type:
                     obj.select_set(False)
-                    self.report(
-                        {"ERROR"},
-                        f"IFC join failed - object '{obj.name}' has a different representation type "
-                        f"({obj_rep.RepresentationType})\nthan target '{self.target.name}' ({representation_type}).",
-                    )
-                    return
+                    skipped_objects.append((obj.name, obj_rep.RepresentationType))
+                    continue
 
                 placement = np.array(obj.matrix_world)
                 placement[M_TRANSLATION] /= si_conversion
@@ -2167,6 +2164,9 @@ class OverrideJoin(bpy.types.Operator, tool.Ifc.Operator):
 
                     items.append(copied_item)
                 ifcopenshell.api.root.remove_product(ifc_file, product=element)
+            if skipped_objects:
+                skipped_info = ", ".join(f"'{name}' ({rep_type})" for name, rep_type in skipped_objects)
+                self.report({"INFO"}, f"Skipped incompatible objects: {skipped_info}")
             representation.Items = items
             bpy.ops.object.join()
             core.switch_representation(