```

feat(WerewolfSkill): 狂暴狼人技能系统重构为吸血战坦体系

- 实现完整的嗜血狂暴技能体系：1级嗜血狂暴、3级血脉沸腾、
  6级残虐血性、10级不灭狼王四个阶段
- 添加重抓撕咬动画效果和鲜血飞溅特效
- 实现扇形AOE撕裂攻击和吸血回复机制
- 添加背水一战机制：血量越低减伤和吸血越高
- 实现击杀刷新技能时间的连击机制
- 更新狼人定位从快速近战改为吸血战坦
- 添加全局单位击杀事件监听处理
```

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