2x4 lane - balanced shape miner - upgradable to 3x4

Balanced Shape Miner Blueprint This blueprint is a shape mining system designed to handle 4, 8, 12, or 16 miners per node with perfect output balance. It ensures that one miner from each quadrant feeds evenly into a single merged lane, maintaining throughput parity regardless of miner count. Once merged, the output is cleanly split into three vertical lane heights (the split happens on 1 tile, so all 3 heights receive equal output. In this current blueprint the output has been setup for 2x4 lanes. In order to upgrade to 3x4 the 4 remaining open output connection need to be connected to the 3rd floor output lanes.