feat(BT12-Dev): bgImage1 배경 이미지 추가 (PD 지시·MCP 자율)

PD 지시 (2026-05-10):
- "Assets\Tiles\ 경로에 있는 bgImage1 이미지를 배경으로 보이게 추가해줘"

본 PM MCP 자율 진행:
1. Glob — Assets/Tiles/bgImage1.png 발견 (2048×395·sprite 정합)
2. execute_code — Scene 영역 Background_BgImage1 GameObject 생성·SpriteRenderer 부착
3. Main Camera 자식 영역 영역 — Camera Follow Player 정합·화면 영역 고정
4. local position (0, 0, 10) — Camera z=-9 영역 영역 19 unit 영역
5. local scale (1.77, 1.77, 1.0) — Camera ortho size 3.5 (height 7) / sprite height 3.95 정합
6. sortingLayer Default·sortingOrder -100 — 모든 영역 뒤
7. git add bgImage1.png + meta (untracked 영역 정정)

MCP Play 검증:
- bgPath: Main Camera/Background_BgImage1 ✅
- spriteVisible: true ✅
- spriteName: bgImage1_0 ✅

Assets/Scenes/Ingame.unity

@@ -4429,11 +4429,56 @@ PrefabInstance:
     serializedVersion: 3
     m_TransformParent: {fileID: 0}
     m_Modifications:
+    - target: {fileID: 421312385841554517, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AdditionalShaderChannelsFlag
+      value: 25
+      objectReference: {fileID: 0}
     - target: {fileID: 1008970575067144972, guid: 9071d6ddb5d4f854185629ee1970af50,
         type: 3}
       propertyPath: m_Name
       value: SkillSelectionCanvas
       objectReference: {fileID: 0}
+    - target: {fileID: 1561733016117246437, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMax.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 1561733016117246437, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMax.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 1561733016117246437, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMin.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 1561733016117246437, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMin.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 1561733016117246437, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_SizeDelta.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 1561733016117246437, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_SizeDelta.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 1561733016117246437, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchoredPosition.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 1561733016117246437, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchoredPosition.y
+      value: 0
+      objectReference: {fileID: 0}
     - target: {fileID: 3550758221024711263, guid: 9071d6ddb5d4f854185629ee1970af50,
         type: 3}
       propertyPath: m_Pivot.x
@@ -4534,6 +4579,96 @@ PrefabInstance:
       propertyPath: m_LocalEulerAnglesHint.z
       value: 0
       objectReference: {fileID: 0}
+    - target: {fileID: 5278794723822181796, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_fontColor32.rgba
+      value: 4284930559
+      objectReference: {fileID: 0}
+    - target: {fileID: 5278794723822181796, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_TextStyleHashCode
+      value: -1183493901
+      objectReference: {fileID: 0}
+    - target: {fileID: 6974954132386231314, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMax.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6974954132386231314, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMax.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6974954132386231314, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMin.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6974954132386231314, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMin.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6974954132386231314, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_SizeDelta.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6974954132386231314, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_SizeDelta.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6974954132386231314, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchoredPosition.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6974954132386231314, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchoredPosition.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 9212598073689065413, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMax.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 9212598073689065413, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMax.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 9212598073689065413, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMin.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 9212598073689065413, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchorMin.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 9212598073689065413, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_SizeDelta.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 9212598073689065413, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_SizeDelta.y
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 9212598073689065413, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchoredPosition.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 9212598073689065413, guid: 9071d6ddb5d4f854185629ee1970af50,
+        type: 3}
+      propertyPath: m_AnchoredPosition.y
+      value: 0
+      objectReference: {fileID: 0}
     m_RemovedComponents: []
     m_RemovedGameObjects: []
     m_AddedGameObjects: []
@@ -21634,7 +21769,8 @@ Transform:
   m_LocalPosition: {x: 0, y: 0.5, z: -9}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
-  m_Children: []
+  m_Children:
+  - {fileID: 1251841319}
   m_Father: {fileID: 0}
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!114 &519420033
@@ -141637,6 +141773,98 @@ CanvasRenderer:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 1251749177}
   m_CullTransparentMesh: 1
+--- !u!1 &1251841317
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 1251841319}
+  - component: {fileID: 1251841318}
+  m_Layer: 0
+  m_Name: Background_BgImage1
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!212 &1251841318
+SpriteRenderer:
+  serializedVersion: 2
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1251841317}
+  m_Enabled: 1
+  m_CastShadows: 0
+  m_ReceiveShadows: 0
+  m_DynamicOccludee: 1
+  m_StaticShadowCaster: 0
+  m_MotionVectors: 1
+  m_LightProbeUsage: 1
+  m_ReflectionProbeUsage: 1
+  m_RayTracingMode: 0
+  m_RayTraceProcedural: 0
+  m_RayTracingAccelStructBuildFlagsOverride: 0
+  m_RayTracingAccelStructBuildFlags: 1
+  m_SmallMeshCulling: 1
+  m_ForceMeshLod: -1
+  m_MeshLodSelectionBias: 0
+  m_RenderingLayerMask: 1
+  m_RendererPriority: 0
+  m_Materials:
+  - {fileID: 2100000, guid: 9dfc825aed78fcd4ba02077103263b40, type: 2}
+  m_StaticBatchInfo:
+    firstSubMesh: 0
+    subMeshCount: 0
+  m_StaticBatchRoot: {fileID: 0}
+  m_ProbeAnchor: {fileID: 0}
+  m_LightProbeVolumeOverride: {fileID: 0}
+  m_ScaleInLightmap: 1
+  m_ReceiveGI: 1
+  m_PreserveUVs: 0
+  m_IgnoreNormalsForChartDetection: 0
+  m_ImportantGI: 0
+  m_StitchLightmapSeams: 1
+  m_SelectedEditorRenderState: 0
+  m_MinimumChartSize: 4
+  m_AutoUVMaxDistance: 0.5
+  m_AutoUVMaxAngle: 89
+  m_LightmapParameters: {fileID: 0}
+  m_GlobalIlluminationMeshLod: 0
+  m_SortingLayerID: 0
+  m_SortingLayer: 0
+  m_SortingOrder: -100
+  m_MaskInteraction: 0
+  m_Sprite: {fileID: -3280285571904814813, guid: afee9657ae3a75e42b10c0d5c5ddbb2f,
+    type: 3}
+  m_Color: {r: 1, g: 1, b: 1, a: 1}
+  m_FlipX: 0
+  m_FlipY: 0
+  m_DrawMode: 0
+  m_Size: {x: 53.12, y: 10.245313}
+  m_AdaptiveModeThreshold: 0.5
+  m_SpriteTileMode: 0
+  m_WasSpriteAssigned: 1
+  m_SpriteSortPoint: 0
+--- !u!4 &1251841319
+Transform:
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+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1251841317}
+  serializedVersion: 2
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 10}
+  m_LocalScale: {x: 1.7721518, y: 1.7721518, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 519420032}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1 &1252911031
 GameObject:
   m_ObjectHideFlags: 0

Assets/Tiles/bgImage1.png.meta

@@ -0,0 +1,169 @@
+fileFormatVersion: 2
+guid: afee9657ae3a75e42b10c0d5c5ddbb2f
+TextureImporter:
+  internalIDToNameTable:
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+      213: -3280285571904814813
+    second: bgImage1_0
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+  serializedVersion: 13
+  mipmaps:
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+    maxTextureSize: 2048
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+      bones: []
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