[WL-816] 던전 씬 2개를 빌드 씬 목록에 추가 (#816)

816d 가 만든 던전 씬. 없으면 던전 입장이 반드시 실패한다.
+ Assets/WL/Island/Scenes/WL_Dungeon01.unity
+ Assets/WL/Island/Scenes/WL_Dungeon02.unity
검증: 기존 27개 중 사라진 항목 0 · 총 29.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

ProjectSettings/EditorBuildSettings.asset

@@ -86,6 +86,12 @@ EditorBuildSettings:
   - enabled: 1
     path: Assets/WL/Look/Arena/Scenes/WL_ArenaProto.unity
     guid: be57fe49225e2ce4a880f566860efa9a
+  - enabled: 1
+    path: Assets/WL/Island/Scenes/WL_Dungeon01.unity
+    guid: 172583605b6b4e07b3c1ce90024712a4
+  - enabled: 1
+    path: Assets/WL/Island/Scenes/WL_Dungeon02.unity
+    guid: aaee46d680464b5980cd354d100a0544
   m_configObjects:
     com.unity.addressableassets: {fileID: 11400000, guid: a6af74bb7b3ef3f429b3d463f66c15a9,
       type: 2}