feat: 보스 패턴 시스템 구현

- BossPatternData SO로 스킬/Wait 스텝 순서와 쿨타임 정의
- UsePatternAction으로 Behavior Graph에서 패턴 실행
- 보스 전용 애니메이션 분리 및 AnimatorOverrideController 정상화

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Assets/External_Used/Animations/Boss_Melee_Slash_Return_RootMotion.fbx.meta

@@ -1,5 +1,5 @@
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+    motionNodeName: Root
     rigImportErrors: 
     rigImportWarnings: 
     animationImportErrors: 
@@ -33,7 +33,7 @@ ModelImporter:
     extraUserProperties: []
     clipAnimations:
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-      name: A_Attack_LightCombo01A_ReturnToIdle_Sword
+      name: A_Attack_LightCombo01A_ReturnToIdle_RootMotion_Sword
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       internalID: -8265974341663887746
       firstFrame: 25
@@ -46,12 +46,12 @@ ModelImporter:
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Assets/External_Used/Animations/Boss_Melee_Slash_RootMotion.fbx.meta

@@ -1,5 +1,5 @@
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@@ -15,7 +15,7 @@ ModelImporter:
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     optimizeGameObjects: 0
     removeConstantScaleCurves: 0
-    motionNodeName: 
+    motionNodeName: Root
     animationImportErrors: 
     animationImportWarnings: 
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@@ -31,7 +31,7 @@ ModelImporter:
     extraUserProperties: []
     clipAnimations:
     - serializedVersion: 16
-      name: A_Attack_LightCombo01A_Sword
+      name: A_Attack_LightCombo01A_RootMotion_Sword
       takeName: A_Attack_Light01A
       internalID: -7717634560727564301
       firstFrame: 1
@@ -47,36 +47,22 @@ ModelImporter:
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       loopBlendPositionY: 1
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+      name: A_Attack_LightCombo01A_WindUp_RootMotion_Sword
       takeName: A_Attack_Light01A
       internalID: -3664902444864169318
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@@ -209,12 +195,12 @@ ModelImporter:
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-      name: A_Attack_LightCombo01A_Hit_Sword
+      name: A_Attack_LightCombo01A_Hit_RootMotion_Sword
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       firstFrame: 11
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+      name: A_Attack_LightCombo01A_FollowThrough_RootMotion_Sword
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