```

feat(ArcherSkill): 弓箭手技能重构为阶梯体系支持1/3/6/10级完整升级

- 实现迅捷三连技能，支持1级基础3箭、10级升级为6支风暴连射
- 添加弱点锁定机制，6级后伤害逐箭递增且最后一箭必暴击
- 集成破甲易伤标记系统，使目标受到伤害增加30%持续4秒
- 优化技能释放逻辑，支持目标死亡后自动切换最近敌人
- 完善技能平衡性调整，3级箭矢速度提升35%总伤害增加25%

feat(StatusEffectController): 新增易伤状态管理系统

- 添加vulnerability相关属性和ApplyVulnerability方法
- 实现易伤效果的生命周期管理和伤害计算
- 集成到UnitBase的伤害结算流程中

docs: 更新角色技能说明文档支持新技能体系

- 将原弓箭猎人重命名为荒野猎手，更新技能描述
- 同步更新角色与技能对应关系表格
- 调整技能名称从穿透箭改为穿心猎矛等新命名
```

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