Add the routed 8k learning-rate sweep: 18 runs with per-expert load

Add rig training logs: 177 runs across six studies, full resolution (part 4)

Add rig training logs: 177 runs across six studies, full resolution (part 3)

Add rig training logs: 177 runs across six studies, full resolution (part 2)

Add rig training logs: 177 runs across six studies, full resolution

initial commit