Sharpen v1.1.2

Added

• FinRL-X audit study (studies/finrl-x/): the Adaptive Rotation audit with the per-list
  results of all 37 growth lists and the pre-registered verdict, plus the keel-v1 final report.

Changed

• scripts/research/finrl_x_hindsight_runs.py works on Linux and macOS and no longer needs
  results/finrl_x/hindsight/pool.json: without it the growth lists are regenerated from the
  published pool and seed and checked against the published fingerprint.