A mod package edited in place keeps its hull key, so RequireDesigns passed while
saved gear could sit outside the new hardpoints or interior cells and be dropped
on load. RequireLayouts applies the equip rules (HardpointData.TakesAt, interior
cells for tools) to each saved entity and names the changed hulls.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>