```

feat(EliteSoldier): 精锐士兵重构为刺客定位技能体系

- 完全重写EliteSoldierSkill.cs，将职业定位从大剑狂战改为刺客
- 实现1级【裂空突袭】：飞天斩击敌方后排，造成200%物理暴击伤害
- 添加3级【弱点锁定】：伤害提升至250%，暴击率+25%，落地移速+35%
- 添加6级【影袭破防】：目标眩晕1.2秒且物理易伤35%
- 添加10级【死斗连环】：击杀后连斩最多3次，无缝腾空攻击下一个后排
- 优化动画系统：飞跃期间关闭root motion和nav mesh agent避免位移冲突
- 更新动画控制器override controller的clip引用
- 在预制体中添加isStunImmune字段用于10级霸体效果
- 更新游戏说明文档中的技能描述和开发日志
```

Assets/Prefabs/第一章/精锐士兵.prefab

@@ -321,6 +321,7 @@ MonoBehaviour:
   indicatorHeight: 0.35
   stunIndicatorPrefab: {fileID: 2432573200162841629, guid: de288ea16be0c1544a4c6eb71e899570,
     type: 3}
+  isStunImmune: 0
 --- !u!114 &7308248179790118654
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -372,13 +373,12 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: e1992c3d86e464205ac7d12ad4dbdff8, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
-  skillDamage: 125
-  skillRadius: 2.5
-  skillAnimationDuration: 2.22
-  groundCrackEffectPrefab: {fileID: 1670833528851026573, guid: 066bbd566f6034806a29d1e0a6517df4,
+  leapPeakHeight: 3.2
+  landOffsetDistance: 0.9
+  swordWavePrefab: {fileID: 1037878741696276, guid: 330c2a8758f34dd2a2ceea083c4bc2f8,
+    type: 3}
+  groundImpactPrefab: {fileID: 2197285705285267162, guid: c2264ab9308eec342a9aabba9e806a39,
     type: 3}
-  groundCrackForwardDistance: 1.2
-  groundCrackHeightOffset: 0.05
 --- !u!114 &1837549867983925736
 MonoBehaviour:
   m_ObjectHideFlags: 0