feat(classic-games): 新增 Mini Hexapawn 小游戏#838

wyf027 merged 2 commits into

mainwyf027/leetcode-solu:mainfrom

codex/classic-game-20260705-0515-hexapawnwyf027/leetcode-solu:codex/classic-game-20260705-0515-hexapawnCopy head branch name to clipboard