feat: 피격 반응 면역을 경직/넉백/다운으로 분리

- 상태이상 데이터와 관리자에서 단일 피격 면역을 경직, 넉백, 다운 개별 면역으로 분리

- 플레이어 프리팹과 디버그 메뉴, 공용 경직 애니메이션을 갱신해 분리된 면역 상태를 테스트 가능하게 정리

- PlayMode 테스트를 추가해 각 면역이 대응하는 반응만 차단하는지 검증

Assets/_Game/Prefabs/Player/Prefab_Player_Default.prefab

@@ -4726,6 +4726,7 @@ GameObject:
   - component: {fileID: 2540460367028266762}
   - component: {fileID: 1829782337872253002}
   - component: {fileID: 7647416756581242399}
+  - component: {fileID: -263312875943034690}
   m_Layer: 0
   m_Name: Prefab_Player_Default
   m_TagString: Player
@@ -4903,6 +4904,7 @@ MonoBehaviour:
   ShowTopMostFoldoutHeaderGroup: 1
   characterStats: {fileID: -5132198055668300151}
   abnormalityManager: {fileID: 0}
+  defenseController: {fileID: 0}
   shieldStateAbnormality: {fileID: 0}
   passivePrototypeCatalog: {fileID: 11400000, guid: 328a12c12954ef649a9ba5892323c345, type: 2}
   passiveTree: {fileID: 11400000, guid: 33ad68732732b6a4589e24da88253f8d, type: 2}
@@ -4965,6 +4967,14 @@ MonoBehaviour:
       NameHash: 976603345
       Synchronize: 1
       ParameterType: 9
+    - name: Hit
+      NameHash: 1654612129
+      Synchronize: 1
+      ParameterType: 9
+    - name: HitSpeedMultiplier
+      NameHash: -316320400
+      Synchronize: 1
+      ParameterType: 1
   AnimatorParametersExpanded: 0
 --- !u!95 &3426985706796420257
 Animator:
@@ -5026,19 +5036,29 @@ MonoBehaviour:
   registeredClips:
   - {fileID: 7400000, guid: e920395a39d50ca429748ac26967e22f, type: 2}
   - {fileID: 7400000, guid: 920ea8a73bbf84849b01d3875ff4e4c3, type: 2}
+  - {fileID: 7400000, guid: 0e2ed792a5988304c82e86a671d181d9, type: 2}
   - {fileID: 7400000, guid: 5c93f4c7dbc1b314d8e7b318826ef530, type: 2}
   - {fileID: 7400000, guid: afba3dfa5c315c04fa8af0e2e52aee3c, type: 2}
   - {fileID: 7400000, guid: d8bb58f4f1cc36440896fec5c4002e59, type: 2}
   - {fileID: 7400000, guid: dc5e72498abe07149b02d93a308697db, type: 2}
+  - {fileID: 7400000, guid: 7ba0436909058c54fb6203180daf8377, type: 2}
   - {fileID: 7400000, guid: 53d4b641824bfd248ab6ba10ec9c4b00, type: 2}
+  - {fileID: 7400000, guid: 81732d3b50fdd8645b9465a4f12a99ae, type: 2}
+  - {fileID: 7400000, guid: 55409975b480666448b276c21d9aeb3d, type: 2}
+  - {fileID: 7400000, guid: 686713d64f5e0dd4585b6a3d00fb25a3, type: 2}
   - {fileID: 7400000, guid: fabf33afcfd658d47a5566582fdbf044, type: 2}
   - {fileID: 7400000, guid: 581f9de1a3e502f4eb95b1e922117c5c, type: 2}
+  - {fileID: 7400000, guid: 60a7aefb54ade4a41904977685930f3d, type: 2}
   - {fileID: 7400000, guid: b08df23bb6e5efe4db4dae2bb02382b1, type: 2}
+  - {fileID: 7400000, guid: 3fe6587798a1a3a47a568b0dea6ffbf4, type: 2}
+  - {fileID: 7400000, guid: 448433a9cacf21e428d4e29f81741ad2, type: 2}
   - {fileID: 7400000, guid: e586d02e6719b56489738b82604abdcf, type: 2}
   - {fileID: 7400000, guid: 0c9ba11ed23236649929b0225a8beadb, type: 2}
+  - {fileID: 7400000, guid: fe55ab7fad6cd644db9bd2b6183fe180, type: 2}
   - {fileID: 7400000, guid: 7813457eddc067249a6ed50f31b6fe8c, type: 2}
   - {fileID: 7400000, guid: b7223eada9e64304baa6b4c9dcdfcd15, type: 2}
   - {fileID: 7400000, guid: 295669009c1870f4ab5d43fa28fd6e30, type: 2}
+  - {fileID: 7400000, guid: e7ef39b0eacfc6940a8c7e1f20ba97e7, type: 2}
   - {fileID: 7400000, guid: 7f0d64090ab5adf439b9437c98a0bdd0, type: 2}
   - {fileID: 7400000, guid: df8ffc011feaf17429b7f429f635db3f, type: 2}
   - {fileID: 7400000, guid: 23aba6e7f76aa57478374325cb4f454e, type: 2}
@@ -5047,6 +5067,7 @@ MonoBehaviour:
   debugDrawDuration: 1
   lastCancelledSkillName: 
   lastCancelReason: 0
+  lastExecutionResult: 0
 --- !u!114 &6585367215453362640
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -5208,6 +5229,7 @@ MonoBehaviour:
   abnormalityManager: {fileID: 0}
   skillController: {fileID: 0}
   hitReactionController: {fileID: 0}
+  defenseController: {fileID: 0}
   spectator: {fileID: 0}
 --- !u!114 &2540460367028266762
 MonoBehaviour:
@@ -5281,6 +5303,22 @@ MonoBehaviour:
   inRangeColor: {r: 0.2, g: 1, b: 0.2, a: 0.8}
   outOfRangeColor: {r: 1, g: 0.3, b: 0.3, a: 0.8}
   useSkillRange: 1
+--- !u!208 &-263312875943034690
+NavMeshObstacle:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 6473031571298860035}
+  m_Enabled: 0
+  serializedVersion: 3
+  m_Shape: 1
+  m_Extents: {x: 0.5, y: 0.5, z: 0.5}
+  m_MoveThreshold: 0.1
+  m_Carve: 0
+  m_CarveOnlyStationary: 1
+  m_Center: {x: 0, y: 0, z: 0}
+  m_TimeToStationary: 0.5
 --- !u!1 &6541621058422482552
 GameObject:
   m_ObjectHideFlags: 0