feat: 사망 애니메이션 루프 및 컨트롤러 업데이트

Death_Pose_Default을 Death_Default_Loop로 교체하여 사망 애니메이션 루프 지원

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

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

Assets/External_Used/Animations/Death_Default.fbx.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: c1982a19fac5e77439ec3efd79eeace2
+guid: dce2c044329372a439fffb8c2850a005
 ModelImporter:
   serializedVersion: 22200
   internalIDToNameTable: []
@@ -33,10 +33,10 @@ ModelImporter:
     extraUserProperties: []
     clipAnimations:
     - serializedVersion: 16
-      name: A_MOD_SWD_Death_B_Pose_Neut
-      takeName: A_MOD_SWD_Death_B_Pose_Neut
-      internalID: 2473861289378347930
-      firstFrame: 52
+      name: A_MOD_SWD_Death_B_Neut
+      takeName: A_MOD_SWD_Death_B_Neut
+      internalID: 8003560683512829103
+      firstFrame: 1
       lastFrame: 53
       wrapMode: 0
       orientationOffsetY: 0