Feature: Add Operator to Arrange Processed Meshes in a Grid

[Rakadeja]

Summary

After generating dozens or hundreds of character meshes, they all exist at the same world origin, making them difficult to view at once. A utility operator is needed to arrange all objects from the "Processed" collection into a clean, evenly-spaced grid.

This operation must only move the objects themselves, preserving each mesh's origin point at the world center (0,0,0).

Implementation Plan

1. Create a new operator class, e.g., BF2M_OT_ArrangeGrid(bpy.types.Operator).
2. Add a button to the UI to call this operator, perhaps appearing only after a generation is complete.
3. The operator's execute method should:
   • Find the "Processed" collection.
   • Get the list of objects within it.
   • Define a spacing variable (e.g., 2.0 Blender units).
   • Calculate a grid width (e.g., the square root of the number of objects).
   • Loop through the objects, assigning a new object.location to each one based on its index in the loop ((index % width) * spacing, (index // width) * -spacing, 0).

This ensures only the object's location is changed, not the mesh data's relation to its origin.