```

feat(Animation): 添加技能动画状态和过渡

- 在base人类型士控制器中添加skill动画状态
- 添加从默认状态到技能状态的过渡条件
- 配置技能动画的状态转换参数
- 在蓝色怪物override controller中添加技能动画覆盖

fix(Model): 修复模型导入设置和骨骼位置

- 将人类型士Idle模型材质导入模式从2改为1
- 调整蓝色怪物怒吼动画的最后一帧从85到65
- 修正模型骨骼位置数据，统一缩放比例
- 更新蓝色怪物模型的全局缩放从0.023到2.3

docs(Codely): 删除剪贴板图片文件
```

Assets/Script/UnitBase.cs

@@ -85,6 +85,11 @@ public class UnitBase : MonoBehaviour
     //当前攻击开始时间，用于在没有结束 Event 时释放攻击状态。
     private float attackStartTime;
 
+    private bool isPlayingSkill;
+    private float attackSpeedMultiplier = 1f;
+    private UnitSkill unitSkill;
+    private System.Action skillFinishedCallback;
+
 
     //状态枚举
     public enum State
@@ -96,7 +101,10 @@ public class UnitBase : MonoBehaviour
         Track, 
 
         //攻击状态
-        Attack
+        Attack,
+
+        //技能状态
+        Skill
     }
 
 
@@ -111,6 +119,7 @@ public class UnitBase : MonoBehaviour
         animator = GetComponent<Animator>();
         controller = GetComponent<CharacterController>();
         worldHealthBar = GetComponent<WorldHealthBar>();
+        unitSkill = GetComponent<UnitSkill>();
 
         // 位移和朝向由 CharacterController 与 UnitBase 控制，避免攻击动画的根运动叠加旋转。
         animator.applyRootMotion = false;
@@ -133,6 +142,14 @@ public class UnitBase : MonoBehaviour
             return;
         }
 
+        if (isPlayingSkill)
+        {
+            animator.SetInteger("speed", 0);
+            applyGravity();
+            CheckSkillAnimationFinished();
+            return;
+        }
+
         //查找场景中距离自己最近的敌对目标
         target = FindNearestOpponent();
         if (target != null)
@@ -158,6 +175,12 @@ public class UnitBase : MonoBehaviour
         applyGravity();
     }
 
+    public GameObject Target => target;
+
+    public string OpponentTag => GetOpponentTag();
+
+    public float AttackSpeedMultiplier => attackSpeedMultiplier;
+
     //根据自身Tag找到敌对Tag
     private string GetOpponentTag()
     {
@@ -287,11 +310,11 @@ public class UnitBase : MonoBehaviour
         float animationDuration = GetAttackAnimationDuration();
         if (animationDuration <= 0f || attackDuration <= 0f)
         {
-            animator.speed = 1f;
+            animator.speed = attackSpeedMultiplier;
             return;
         }
 
-        animator.speed = animationDuration / attackDuration;
+        animator.speed = animationDuration / attackDuration * attackSpeedMultiplier;
     }
 
     //攻击
@@ -365,6 +388,25 @@ public class UnitBase : MonoBehaviour
         }
     }
 
+    public void FireSkillProjectile(GameObject opponent)
+    {
+        if (opponent == null || projectilePrefab == null || projectileSpawnPoint == null)
+        {
+            return;
+        }
+
+        GameObject projectileObject = Instantiate(
+            projectilePrefab,
+            projectileSpawnPoint.position,
+            projectileSpawnPoint.rotation);
+        Projectile projectile = projectileObject.GetComponent<Projectile>();
+        if (projectile != null)
+        {
+            // 技能箭不再次积攒能量，避免技能触发递归。
+            projectile.Initialize(opponent, attackPower, gameObject, projectileSpeed, projectileLifetime, false);
+        }
+    }
+
     // 普通攻击命中后积攒能量，满能量时清空能量并调用技能占位方法。
     private void AddAttackEnergy()
     {
@@ -382,9 +424,51 @@ public class UnitBase : MonoBehaviour
         ReleaseSkill();
     }
 
-    // 技能占位方法，后续由具体单位脚本重写。
-    protected virtual void ReleaseSkill()
+    private void ReleaseSkill()
     {
+        if (unitSkill != null)
+        {
+            unitSkill.ReleaseSkill();
+        }
+    }
+
+    public void PlaySkillAnimation(System.Action onFinished)
+    {
+        if (isPlayingSkill)
+        {
+            return;
+        }
+
+        skillFinishedCallback = onFinished;
+        isPlayingSkill = true;
+        state = State.Skill;
+        animator.speed = 1f;
+        animator.SetInteger("speed", 0);
+        animator.SetTrigger("skill");
+        attackStartTime = Time.time;
+    }
+
+    public void MultiplyAttackSpeed(float multiplier, float limit)
+    {
+        attackSpeedMultiplier = Mathf.Min(
+            attackSpeedMultiplier * multiplier,
+            limit);
+        animator.speed = attackSpeedMultiplier;
+    }
+
+    private void CheckSkillAnimationFinished()
+    {
+        AnimatorStateInfo stateInfo = animator.GetCurrentAnimatorStateInfo(0);
+        if (!stateInfo.IsName("skill") || stateInfo.normalizedTime < 1f)
+        {
+            return;
+        }
+
+        isPlayingSkill = false;
+        state = State.Alert;
+        animator.speed = attackSpeedMultiplier;
+        skillFinishedCallback?.Invoke();
+        skillFinishedCallback = null;
     }
 
 
@@ -429,8 +513,8 @@ public class UnitBase : MonoBehaviour
 
     private void FinishAttack()
     {
-        //攻击动画结束后恢复Animator速度。
-        animator.speed = 1f;
+        //攻击动画结束后恢复当前攻速倍率。
+        animator.speed = attackSpeedMultiplier;
 
         //攻击动画结束后，目标仍在攻击范围内则立即进行下一次攻击。
         target = FindNearestOpponent();