refactor: FBX 애니메이션 클립 독립 .anim 추출 및 자동 등록 시스템 구축

- FBX 내장 AnimationClip을 개별 .anim 파일로 추출하는 에디터 툴 추가 (AnimationClipExtractor)
  - 스킬/보스/AnimatorController에서 참조 중인 클립만 선택적 추출
  - 추출 후 모든 참조(SkillData, BossPhaseData, AnimatorController)를 .anim으로 자동 relink
  - 추출 완료된 FBX 자동 삭제 (참조 안전성 검증 포함)
- SkillController: registeredClips를 OnValidate에서 _Player_ 이름 기반 자동 등록
- PlayerSkillInput: skillSlots를 OnValidate에서 _Skill_Player_ 이름 기반 자동 등록
- 38개 FBX 삭제, 40+개 .anim 파일로 교체 완료

Assets/_Game/Animations/Controllers/AC_Player_Default.controller

@@ -21,7 +21,7 @@ AnimatorState:
   m_MirrorParameterActive: 0
   m_CycleOffsetParameterActive: 0
   m_TimeParameterActive: 0
-  m_Motion: {fileID: 1375766457120316241, guid: 12f6f354f8fc3c14a981342fc460cc7e, type: 3}
+  m_Motion: {fileID: 7400000, guid: ebc8e8e59d375104babccd596aa3bdc0, type: 2}
   m_Tag: 
   m_SpeedParameter: 
   m_MirrorParameter: 
@@ -149,7 +149,7 @@ AnimatorState:
   m_MirrorParameterActive: 0
   m_CycleOffsetParameterActive: 0
   m_TimeParameterActive: 0
-  m_Motion: {fileID: -7717634560727564301, guid: 0f6fd9302e489b94d96774e2713b1317, type: 3}
+  m_Motion: {fileID: 7400000, guid: 38a21eded51c5b24bb70a48d387aa565, type: 2}
   m_Tag: 
   m_SpeedParameter: 
   m_MirrorParameter: 
@@ -214,7 +214,7 @@ AnimatorState:
   m_MirrorParameterActive: 0
   m_CycleOffsetParameterActive: 0
   m_TimeParameterActive: 0
-  m_Motion: {fileID: 8003560683512829103, guid: dce2c044329372a439fffb8c2850a005, type: 3}
+  m_Motion: {fileID: 7400000, guid: 0063c4809c39f4a4fab4118d94af905a, type: 2}
   m_Tag: 
   m_SpeedParameter: 
   m_MirrorParameter: 
@@ -288,7 +288,7 @@ AnimatorState:
   m_MirrorParameterActive: 0
   m_CycleOffsetParameterActive: 0
   m_TimeParameterActive: 0
-  m_Motion: {fileID: -2993534804863918692, guid: b47076bf3f0165247958936162c43652, type: 3}
+  m_Motion: {fileID: 7400000, guid: 1ec316f7bc59114438737162c529e859, type: 2}
   m_Tag: 
   m_SpeedParameter: 
   m_MirrorParameter: 
@@ -403,62 +403,12 @@ AnimatorState:
   m_MirrorParameterActive: 0
   m_CycleOffsetParameterActive: 0
   m_TimeParameterActive: 0
-  m_Motion: {fileID: 3874071007334998130, guid: 8fd264ef2b6e91345926248a5b194e8b, type: 3}
+  m_Motion: {fileID: 7400000, guid: 92048c8715663824db12edf9e8f37b1a, type: 2}
   m_Tag: 
   m_SpeedParameter: 
   m_MirrorParameter: 
   m_CycleOffsetParameter: 
   m_TimeParameter: 
---- !u!1101 &3552691702041008167
-AnimatorStateTransition:
-  m_ObjectHideFlags: 1
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_Name: 
-  m_Conditions:
-  - m_ConditionMode: 3
-    m_ConditionEvent: Speed
-    m_EventTreshold: 0.01
-  m_DstStateMachine: {fileID: 0}
-  m_DstState: {fileID: -4652545120162758660}
-  m_Solo: 0
-  m_Mute: 0
-  m_IsExit: 0
-  serializedVersion: 3
-  m_TransitionDuration: 0.25
-  m_TransitionOffset: 0
-  m_ExitTime: 0.75
-  m_HasExitTime: 0
-  m_HasFixedDuration: 1
-  m_InterruptionSource: 0
-  m_OrderedInterruption: 1
-  m_CanTransitionToSelf: 1
---- !u!1101 &6228136561094308872
-AnimatorStateTransition:
-  m_ObjectHideFlags: 1
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_Name: 
-  m_Conditions:
-  - m_ConditionMode: 1
-    m_ConditionEvent: Die
-    m_EventTreshold: 0
-  m_DstStateMachine: {fileID: 0}
-  m_DstState: {fileID: -1032254959699123210}
-  m_Solo: 0
-  m_Mute: 0
-  m_IsExit: 0
-  serializedVersion: 3
-  m_TransitionDuration: 0.25
-  m_TransitionOffset: 0
-  m_ExitTime: 0.75
-  m_HasExitTime: 0
-  m_HasFixedDuration: 1
-  m_InterruptionSource: 0
-  m_OrderedInterruption: 1
-  m_CanTransitionToSelf: 1
 --- !u!1102 &1111345123456789012
 AnimatorState:
   serializedVersion: 6
@@ -480,7 +430,7 @@ AnimatorState:
   m_MirrorParameterActive: 0
   m_CycleOffsetParameterActive: 0
   m_TimeParameterActive: 0
-  m_Motion: {fileID: 3325809351021969952, guid: 9f1ccf176a8592d4997f8a7c48f9571f, type: 3}
+  m_Motion: {fileID: 7400000, guid: ca8cea0da5fabb74d9e4f0d4b31262a1, type: 2}
   m_Tag: 
   m_SpeedParameter: 
   m_MirrorParameter: 
@@ -507,7 +457,7 @@ AnimatorState:
   m_MirrorParameterActive: 0
   m_CycleOffsetParameterActive: 0
   m_TimeParameterActive: 0
-  m_Motion: {fileID: 4349338778344460676, guid: b0e7c1111468a924a81b4323e5aa8eb4, type: 3}
+  m_Motion: {fileID: 7400000, guid: 1a78e440e35d67c4bb4cf734a52e003a, type: 2}
   m_Tag: 
   m_SpeedParameter: 
   m_MirrorParameter: 
@@ -534,7 +484,7 @@ AnimatorState:
   m_MirrorParameterActive: 0
   m_CycleOffsetParameterActive: 0
   m_TimeParameterActive: 0
-  m_Motion: {fileID: -3512901111006340046, guid: 3866152d4c1922849be562e6e814dce3, type: 3}
+  m_Motion: {fileID: 7400000, guid: fce016eeacf5d20478d6d1a799f93c8f, type: 2}
   m_Tag: 
   m_SpeedParameter: 
   m_MirrorParameter: 
@@ -634,6 +584,56 @@ AnimatorStateTransition:
   m_InterruptionSource: 0
   m_OrderedInterruption: 1
   m_CanTransitionToSelf: 1
+--- !u!1101 &3552691702041008167
+AnimatorStateTransition:
+  m_ObjectHideFlags: 1
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: 
+  m_Conditions:
+  - m_ConditionMode: 3
+    m_ConditionEvent: Speed
+    m_EventTreshold: 0.01
+  m_DstStateMachine: {fileID: 0}
+  m_DstState: {fileID: -4652545120162758660}
+  m_Solo: 0
+  m_Mute: 0
+  m_IsExit: 0
+  serializedVersion: 3
+  m_TransitionDuration: 0.25
+  m_TransitionOffset: 0
+  m_ExitTime: 0.75
+  m_HasExitTime: 0
+  m_HasFixedDuration: 1
+  m_InterruptionSource: 0
+  m_OrderedInterruption: 1
+  m_CanTransitionToSelf: 1
+--- !u!1101 &6228136561094308872
+AnimatorStateTransition:
+  m_ObjectHideFlags: 1
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: 
+  m_Conditions:
+  - m_ConditionMode: 1
+    m_ConditionEvent: Die
+    m_EventTreshold: 0
+  m_DstStateMachine: {fileID: 0}
+  m_DstState: {fileID: -1032254959699123210}
+  m_Solo: 0
+  m_Mute: 0
+  m_IsExit: 0
+  serializedVersion: 3
+  m_TransitionDuration: 0.25
+  m_TransitionOffset: 0
+  m_ExitTime: 0.75
+  m_HasExitTime: 0
+  m_HasFixedDuration: 1
+  m_InterruptionSource: 0
+  m_OrderedInterruption: 1
+  m_CanTransitionToSelf: 1
 --- !u!1102 &7693173606830535998
 AnimatorState:
   serializedVersion: 6
@@ -655,7 +655,7 @@ AnimatorState:
   m_MirrorParameterActive: 0
   m_CycleOffsetParameterActive: 0
   m_TimeParameterActive: 0
-  m_Motion: {fileID: 8232730923502177427, guid: b47076bf3f0165247958936162c43652, type: 3}
+  m_Motion: {fileID: 7400000, guid: 1ec316f7bc59114438737162c529e859, type: 2}
   m_Tag: 
   m_SpeedParameter: 
   m_MirrorParameter: