v0.5.0

[0.5.0] - 2026-07-14

Added

• Sweep resilience and provenance: run(on_error="nan") records failed grid cells as
  NaN and keeps going (default stays "raise"); run(working_dir=..., resume=True)
  re-runs only the failed/missing cells and fills them in place; compare/Study
  refuse statistics on an incomplete sweep (IncompleteSweepError) until you resume;
  every run writes per-job provenance (mushin_provenance.json: git SHA, versions,
  config) with an opt-in capture_env=True full dependency snapshot. Study accepts
  on_error/resume/capture_env for training sweeps.