chore: 애니메이션 컨트롤러 및 프리팹 업데이트

- 플레이어/적 애니메이션 컨트롤러 업데이트
- 플레이어 프리팹에 관전/사망 컴포넌트 추가
- 보스 템플릿 프리팹 추가
- Human-Custom 캐릭터 프리팹 추가

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Assets/Animations/PlayerAnimationController.controller

@@ -76,10 +76,14 @@ AnimatorStateMachine:
   - serializedVersion: 1
     m_State: {fileID: -2487449162152911812}
     m_Position: {x: -210, y: 350, z: 0}
+  - serializedVersion: 1
+    m_State: {fileID: -1032254959699123210}
+    m_Position: {x: -450, y: 270, z: 0}
   m_ChildStateMachines: []
   m_AnyStateTransitions:
   - {fileID: -754003289131015157}
   - {fileID: 469741948129995159}
+  - {fileID: 6228136561094308872}
   m_EntryTransitions: []
   m_StateMachineTransitions: {}
   m_StateMachineBehaviours: []
@@ -180,6 +184,32 @@ BlendTree:
   m_UseAutomaticThresholds: 1
   m_NormalizedBlendValues: 0
   m_BlendType: 0
+--- !u!1102 &-1032254959699123210
+AnimatorState:
+  serializedVersion: 6
+  m_ObjectHideFlags: 1
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: Die
+  m_Speed: 1
+  m_CycleOffset: 0
+  m_Transitions: []
+  m_StateMachineBehaviours: []
+  m_Position: {x: 50, y: 50, z: 0}
+  m_IKOnFeet: 0
+  m_WriteDefaultValues: 1
+  m_Mirror: 0
+  m_SpeedParameterActive: 0
+  m_MirrorParameterActive: 0
+  m_CycleOffsetParameterActive: 0
+  m_TimeParameterActive: 0
+  m_Motion: {fileID: 8003560683512829103, guid: dce2c044329372a439fffb8c2850a005, type: 3}
+  m_Tag: 
+  m_SpeedParameter: 
+  m_MirrorParameter: 
+  m_CycleOffsetParameter: 
+  m_TimeParameter: 
 --- !u!1101 &-754003289131015157
 AnimatorStateTransition:
   m_ObjectHideFlags: 1
@@ -287,6 +317,12 @@ AnimatorController:
     m_DefaultInt: 0
     m_DefaultBool: 0
     m_Controller: {fileID: 9100000}
+  - m_Name: Die
+    m_Type: 9
+    m_DefaultFloat: 0
+    m_DefaultInt: 0
+    m_DefaultBool: 0
+    m_Controller: {fileID: 9100000}
   m_AnimatorLayers:
   - serializedVersion: 5
     m_Name: Base Layer
@@ -376,6 +412,31 @@ AnimatorStateTransition:
   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