feat(chat-original): ChatFragment에 작품별 탭 및 리스트 UI/API 연동 추가

- ChatFragment에 '작품별' 탭 추가 및 프래그먼트 스위칭 로직 반영
- /api/chat/original/list API, 모델, 레포지토리, ViewModel 추가
- OriginalTabFragment/Adapter/레이아웃 구현 (3단 그리드, 간격 16dp, 이미지 라운드 16dp, 아이템 이미지의 레이아웃 비율을 306:432)
- 스크롤 끝 감지를 구현하여 무한 스크롤을 지원

app/src/main/java/kr/co/vividnext/sodalive/di/AppDI.kt

@@ -79,6 +79,9 @@ import kr.co.vividnext.sodalive.chat.talk.TalkApi
 import kr.co.vividnext.sodalive.chat.talk.TalkTabRepository
 import kr.co.vividnext.sodalive.chat.talk.TalkTabViewModel
 import kr.co.vividnext.sodalive.chat.talk.room.chatTalkRoomModule
+import kr.co.vividnext.sodalive.chat.original.OriginalWorkApi
+import kr.co.vividnext.sodalive.chat.original.OriginalWorkRepository
+import kr.co.vividnext.sodalive.chat.original.OriginalWorkViewModel
 import kr.co.vividnext.sodalive.common.ApiBuilder
 import kr.co.vividnext.sodalive.common.ObjectBox
 import kr.co.vividnext.sodalive.explorer.ExplorerApi
@@ -263,6 +266,7 @@ class AppDI(private val context: Context, isDebugMode: Boolean) {
         single { ApiBuilder().build(get(), CharacterApi::class.java) }
         single { ApiBuilder().build(get(), TalkApi::class.java) }
         single { ApiBuilder().build(get(), CharacterCommentApi::class.java) }
+        single { ApiBuilder().build(get(), OriginalWorkApi::class.java) }
     }
 
     private val viewModelModule = module {
@@ -367,6 +371,7 @@ class AppDI(private val context: Context, isDebugMode: Boolean) {
         viewModel { kr.co.vividnext.sodalive.chat.character.comment.CharacterCommentListViewModel(get()) }
         viewModel { kr.co.vividnext.sodalive.chat.character.comment.CharacterCommentReplyViewModel(get()) }
         viewModel { NewCharactersAllViewModel(get()) }
+        viewModel { OriginalWorkViewModel(get()) }
     }
 
     private val repositoryModule = module {
@@ -417,6 +422,7 @@ class AppDI(private val context: Context, isDebugMode: Boolean) {
         factory { TalkTabRepository(get()) }
         factory { CharacterCommentRepository(get()) }
         factory { NewCharactersRepository(get()) }
+        factory { OriginalWorkRepository(get()) }
     }