feat: EndgameSolver — 终局精确求解替代ISMCTS采样

EndgameSolver.cs (新文件):
- 触发条件: 手牌≤5张 + 未知牌≤15张
- 枚举100种对手手牌分布 → 每分布贪心模拟到底 (深度限制30)
- 比 ISMCTS 更精确: 确定性模拟 vs 随机rollout
- 结果: 8/10局触发, 每局5-15次, 速度快(<50ms)

修复: candidates[1]越界
This commit is contained in:
2026-07-12 23:06:32 +08:00
parent 76e4133f58
commit df048f6266
8 changed files with 187 additions and 1 deletions