feat: 런타임 보스 디버그 패널 및 MCP 커맨드 추가

- HUD 우측 하단 접이식 디버그 패널 (DebugPanelUI): 보스 HP 슬라이더/직접입력/프리셋, 페이즈 전환, 리스폰, 보호막, 이상상태 적용
- MCP execute_menu_item으로 호출 가능한 MenuItem 커맨드 (DebugBossMenuItems): HP/페이즈/보호막 제어, 상태 조회, 임의 값 설정 지원
- BossEnemyEditor 인스펙터 HP 조작 확장: 퍼센트 슬라이더 및 직접 HP 입력 추가
- Test 씬 UI Canvas 하위 DebugPanel GameObject 배치
- UNITY_EDITOR || DEVELOPMENT_BUILD 가드로 릴리즈 빌드 미포함

Assets/Scenes/Test.unity

@@ -1184,6 +1184,7 @@ RectTransform:
   - {fileID: 678443228}
   - {fileID: 1221067101607693524}
   - {fileID: 1943804129}
+  - {fileID: 985852648}
   m_Father: {fileID: 0}
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
@@ -5040,6 +5041,58 @@ Transform:
   m_CorrespondingSourceObject: {fileID: 7132605379903659868, guid: 5b4ac53b97612ae4392b84786de0d50d, type: 3}
   m_PrefabInstance: {fileID: 539760736}
   m_PrefabAsset: {fileID: 0}
+--- !u!1 &985852647
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 985852648}
+  - component: {fileID: 985852649}
+  m_Layer: 0
+  m_Name: DebugPanel
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!224 &985852648
+RectTransform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 985852647}
+  m_LocalRotation: {x: -0, y: -0, z: -0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 260528176}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+  m_AnchorMin: {x: 0, y: 0}
+  m_AnchorMax: {x: 1, y: 1}
+  m_AnchoredPosition: {x: 0, y: 0}
+  m_SizeDelta: {x: 0, y: 0}
+  m_Pivot: {x: 0.5, y: 0.5}
+--- !u!114 &985852649
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 985852647}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 7b7611f77d92f8e41bfe5dfb5ac1768f, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: Colosseum.Game::Colosseum.UI.DebugPanelUI
+  stunAbnormalityData: {fileID: 0}
+  silenceAbnormalityData: {fileID: 0}
+  panelWidth: 280
+  panelMaxHeight: 500
 --- !u!1001 &989227100
 PrefabInstance:
   m_ObjectHideFlags: 0