Items now emerge from a building's output port across a per-port virtual output belt (progress 0.5 -> 1.0, occluded by the building) before transferring onto the adjacent real belt, instead of appearing instantly. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DZR44tA8sn4dPqDzAVXyps