The dice system now creates satisfying back-and-forth gameplay:

- Human players get a subtle persistent luck edge over bots (slight
  boost to 5s and 6s) — feels lucky without being obvious
- Rubber-band: whoever is behind gets help catching up; humans get
  an extra comeback boost when far behind the leader
- Momentum damper: bots that pull too far ahead get cooled down
- Stuck rescue: all-at-home gets aggressive six boost (stronger for
  humans)
- Finishing push after 8 min ensures games wrap under 15 min
- Removed all capture-biased dice logic — captures now happen purely
  by board position, not rigged dice
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>