fix: 플레이어 접촉 이동과 타깃 표면 추적 보정

- TargetSurfaceUtility를 추가해 플레이어와 적의 실제 충돌 표면 기준으로 거리, 방향, 목적지를 계산

- 플레이어 이동과 적 루트모션, 추적 로직에서 접촉 시 수평 이동을 제한해 겹침과 밀어내기 문제를 완화

- 드로그 AI 거리 판정 노드들이 표면 거리 기준을 사용하도록 맞춰 사거리 분기 오차를 줄임

Assets/_Game/Scripts/AI/BehaviorActions/Conditions/IsDownedTargetInRangeCondition.cs

@@ -52,7 +52,7 @@ namespace Colosseum.AI.BehaviorActions.Conditions
                 if (damageable != null && damageable.IsDead)
                     continue;
 
-                float distance = Vector3.Distance(GameObject.transform.position, candidate.transform.position);
+                float distance = TargetSurfaceUtility.GetHorizontalSurfaceDistance(GameObject.transform.position, candidate);
                 if (distance <= searchRadius)
                     return true;
             }

Assets/_Game/Scripts/AI/BehaviorActions/Conditions/IsHealthBelowCondition.cs

@@ -11,6 +11,7 @@ namespace Colosseum.AI.BehaviorActions.Conditions
     /// 체력이 지정된 비율 이하인지 확인합니다.
     /// </summary>
     [Serializable, GeneratePropertyBag]
+    [Condition(name: "Is Health Below", story: "체력이 [HealthPercent]% 이하인가?", id: "7a4ce4b7-9344-4589-b744-11f5d846dcb2")]
     [NodeDescription(name: "Is Health Below", story: "Check if health is below [HealthPercent] percent", category: "Combat")]
     public partial class IsHealthBelowCondition : Condition
     {

Assets/_Game/Scripts/AI/BehaviorActions/Conditions/IsInAttackRangeCondition.cs

@@ -1,4 +1,7 @@
 using System;
+
+using Colosseum.Combat;
+
 using UnityEngine;
 using Unity.Behavior;
 using Unity.Properties;
@@ -26,10 +29,9 @@ namespace Colosseum.AI.BehaviorActions.Conditions
                 return false;
             }
 
-            float distance = Vector3.Distance(
+            float distance = TargetSurfaceUtility.GetHorizontalSurfaceDistance(
                 GameObject.transform.position,
-                Target.Value.transform.position
-            );
+                Target.Value);
 
             return distance <= Range.Value;
         }

Assets/_Game/Scripts/AI/BehaviorActions/Conditions/IsInRangeCondition.cs

@@ -1,4 +1,7 @@
 using System;
+
+using Colosseum.Combat;
+
 using UnityEngine;
 using Unity.Behavior;
 using Unity.Properties;
@@ -26,7 +29,7 @@ namespace Colosseum.AI.BehaviorActions.Conditions
                 return false;
             }
 
-            float distance = Vector3.Distance(GameObject.transform.position, Target.Value.transform.position);
+            float distance = TargetSurfaceUtility.GetHorizontalSurfaceDistance(GameObject.transform.position, Target.Value);
             return distance <= Range.Value;
         }
     }

Assets/_Game/Scripts/AI/BehaviorActions/Conditions/IsTargetBeyondDistanceCondition.cs

@@ -54,7 +54,7 @@ namespace Colosseum.AI.BehaviorActions.Conditions
                 if (target.IsDead)
                     continue;
 
-                float distance = Vector3.Distance(GameObject.transform.position, candidate.transform.position);
+                float distance = TargetSurfaceUtility.GetHorizontalSurfaceDistance(GameObject.transform.position, candidate);
                 if (distance >= minDistance)
                     return true;
             }

Assets/_Game/Scripts/AI/BehaviorActions/Conditions/IsTargetInAttackRangeCondition.cs

@@ -1,5 +1,6 @@
 using System;
 
+using Colosseum.Combat;
 using Colosseum.Enemy;
 
 using Unity.Behavior;
@@ -33,7 +34,7 @@ namespace Colosseum.AI.BehaviorActions.Conditions
                 return false;
 
             float attackRange = Mathf.Max(0f, AttackRange.Value);
-            float distance = Vector3.Distance(GameObject.transform.position, Target.Value.transform.position);
+            float distance = TargetSurfaceUtility.GetHorizontalSurfaceDistance(GameObject.transform.position, Target.Value);
             return distance <= attackRange + 0.25f;
         }
     }