Improvements to experiment: more checkpoints, mutative checkpoints, blind regression measurements

This is a between experiments post. The first PetClinic-Evolve run gave a clear answer on some measures and a flat non answer on others. The flat parts turned out to be the interesting ones. Here is why they came out flat, and how the next experiment is built to force the question. The question PetClinic-Evolve keeps the coding agent fixed and makes the architecture the thing we vary. A Spring…