feat(chat-talk-room): Room Database 설정 및 Entity 생성

refactor(chat-talk-room): 패키지 chat.room → chat.talk.room 마이그레이션 및 DI 모듈 분리

왜: 기능 영역 명확화(talk) 및 DI 책임 분리로 유지보수성과 확장성을 높이기 위함
무엇:
- 모델/응답/enum 파일들을 chat.room → chat.talk.room 으로 이동
- Room DB 패키지를 chat.room.db → chat.talk.room.db 로 이동
- AppDatabase 클래스명을 역할에 맞게 ChatMessageDatabase로 변경

문서:
- docs/chat-talk-room-package-migration-and-di-module.md 추가
- docs/chat-room-room-database.md 내용 클래스명/경로 갱신

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/CharacterInfo.kt

@@ -1,7 +1,7 @@
 /*
  * 보이스온 - 채팅방 캐릭터 정보 모델
  */
-package kr.co.vividnext.sodalive.chat.room
+package kr.co.vividnext.sodalive.chat.talk.room
 
 import androidx.annotation.Keep
 import com.google.gson.annotations.SerializedName

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/ChatMessage.kt

@@ -1,7 +1,7 @@
 /*
  * 보이스온 - 채팅 메시지 모델 (서버 응답 기반)
  */
-package kr.co.vividnext.sodalive.chat.room
+package kr.co.vividnext.sodalive.chat.talk.room
 
 import androidx.annotation.Keep
 import com.google.gson.annotations.SerializedName

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/ChatMessageMappers.kt

@@ -1,7 +1,7 @@
 /*
  * 보이스온 - 채팅 메시지 매핑 유틸리티
  */
-package kr.co.vividnext.sodalive.chat.room
+package kr.co.vividnext.sodalive.chat.talk.room
 
 import androidx.annotation.Keep
 

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/ChatMessagesResponse.kt

@@ -1,7 +1,7 @@
 /*
  * 보이스온 - 점진적 메시지 로딩 응답 모델
  */
-package kr.co.vividnext.sodalive.chat.room
+package kr.co.vividnext.sodalive.chat.talk.room
 
 import androidx.annotation.Keep
 import com.google.gson.annotations.SerializedName

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/ChatRoomEnterResponse.kt

@@ -1,7 +1,7 @@
 /*
  * 보이스온 - 통합 채팅방 입장 응답 모델
  */
-package kr.co.vividnext.sodalive.chat.room
+package kr.co.vividnext.sodalive.chat.talk.room
 
 import androidx.annotation.Keep
 import com.google.gson.annotations.SerializedName

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/ChatTalkRoomModule.kt

@@ -0,0 +1,13 @@
+package kr.co.vividnext.sodalive.chat.talk.room
+
+import kr.co.vividnext.sodalive.chat.talk.room.db.ChatMessageDatabase
+import org.koin.android.ext.koin.androidContext
+import org.koin.dsl.module
+
+val chatTalkRoomModule = module {
+    // Database
+    single { ChatMessageDatabase.getDatabase(androidContext()) }
+
+    // DAO
+    single { get<ChatMessageDatabase>().chatMessageDao() }
+}

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/MessageStatus.kt

@@ -1,7 +1,7 @@
 /*
  * 보이스온 - 채팅방 메시지 전송 상태 Enum
  */
-package kr.co.vividnext.sodalive.chat.room
+package kr.co.vividnext.sodalive.chat.talk.room
 
 import androidx.annotation.Keep
 

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/MessageType.kt

@@ -1,7 +1,7 @@
 /*
  * 보이스온 - 채팅방 메시지 타입 Enum
  */
-package kr.co.vividnext.sodalive.chat.room
+package kr.co.vividnext.sodalive.chat.talk.room
 
 import androidx.annotation.Keep
 

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/ServerChatMessage.kt

@@ -1,7 +1,7 @@
 /*
  * 보이스온 - 채팅 메시지 모델 (서버 응답 전용 DTO)
  */
-package kr.co.vividnext.sodalive.chat.room
+package kr.co.vividnext.sodalive.chat.talk.room
 
 import androidx.annotation.Keep
 import com.google.gson.annotations.SerializedName

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/db/ChatMessageConverters.kt

@@ -0,0 +1,17 @@
+/*
+ * 보이스온 - 채팅 메시지 Room TypeConverters
+ */
+package kr.co.vividnext.sodalive.chat.talk.room.db
+
+import androidx.room.TypeConverter
+import kr.co.vividnext.sodalive.chat.talk.room.MessageStatus
+
+object ChatMessageConverters {
+    @TypeConverter
+    @JvmStatic
+    fun fromStatus(value: MessageStatus?): String? = value?.name
+
+    @TypeConverter
+    @JvmStatic
+    fun toStatus(value: String?): MessageStatus? = value?.let { MessageStatus.valueOf(it) }
+}

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/db/ChatMessageDao.kt

@@ -0,0 +1,32 @@
+/*
+ * 보이스온 - 채팅 메시지 DAO
+ */
+package kr.co.vividnext.sodalive.chat.talk.room.db
+
+import androidx.annotation.Keep
+import androidx.room.*
+
+@Keep
+@Dao
+interface ChatMessageDao {
+    @Query("SELECT * FROM chat_messages WHERE roomId = :roomId ORDER BY createdAt DESC LIMIT 20")
+    suspend fun getRecentMessages(roomId: Long): List<ChatMessageEntity>
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insertMessage(message: ChatMessageEntity)
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insertMessages(messages: List<ChatMessageEntity>)
+
+    @Update
+    suspend fun updateMessage(message: ChatMessageEntity)
+
+    @Query("DELETE FROM chat_messages WHERE roomId = :roomId AND createdAt < :cutoffTime")
+    suspend fun deleteOldMessages(roomId: Long, cutoffTime: Long)
+
+    @Query("DELETE FROM chat_messages")
+    suspend fun deleteAllMessages()
+
+    @Query("SELECT DISTINCT roomId FROM chat_messages")
+    suspend fun getAllRoomIds(): List<Long>
+}

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/db/ChatMessageDatabase.kt

@@ -0,0 +1,37 @@
+/*
+ * 보이스온 - 채팅방 Room Database (ChatMessage 테이블 포함)
+ */
+package kr.co.vividnext.sodalive.chat.talk.room.db
+
+import android.content.Context
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+import androidx.room.TypeConverters
+
+@Database(
+    entities = [ChatMessageEntity::class],
+    version = 1,
+    exportSchema = false
+)
+@TypeConverters(ChatMessageConverters::class)
+abstract class ChatMessageDatabase : RoomDatabase() {
+    abstract fun chatMessageDao(): ChatMessageDao
+
+    companion object {
+        @Volatile
+        private var INSTANCE: ChatMessageDatabase? = null
+
+        fun getDatabase(context: Context): ChatMessageDatabase {
+            return INSTANCE ?: synchronized(this) {
+                val instance = Room.databaseBuilder(
+                    context.applicationContext,
+                    ChatMessageDatabase::class.java,
+                    "chat_database"
+                ).build()
+                INSTANCE = instance
+                instance
+            }
+        }
+    }
+}

app/src/main/java/kr/co/vividnext/sodalive/chat/talk/room/db/ChatMessageEntity.kt

@@ -0,0 +1,22 @@
+/*
+ * 보이스온 - 채팅 메시지 Room Entity
+ */
+package kr.co.vividnext.sodalive.chat.talk.room.db
+
+import androidx.annotation.Keep
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import kr.co.vividnext.sodalive.chat.talk.room.MessageStatus
+
+@Keep
+@Entity(tableName = "chat_messages")
+data class ChatMessageEntity(
+    @PrimaryKey val messageId: Long,
+    val roomId: Long,
+    val message: String,
+    val profileImageUrl: String,
+    val mine: Boolean,
+    val createdAt: Long,
+    val status: MessageStatus = MessageStatus.SENT,
+    val localId: String? = null
+)

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

@@ -146,6 +146,7 @@ import kr.co.vividnext.sodalive.mypage.profile.tag.MemberTagApi
 import kr.co.vividnext.sodalive.mypage.profile.tag.MemberTagRepository
 import kr.co.vividnext.sodalive.mypage.profile.tag.MemberTagViewModel
 import kr.co.vividnext.sodalive.mypage.recent.recentContentModule
+import kr.co.vividnext.sodalive.chat.talk.room.chatTalkRoomModule
 import kr.co.vividnext.sodalive.mypage.service_center.FaqApi
 import kr.co.vividnext.sodalive.mypage.service_center.FaqRepository
 import kr.co.vividnext.sodalive.mypage.service_center.ServiceCenterViewModel
@@ -410,6 +411,7 @@ class AppDI(private val context: Context, isDebugMode: Boolean) {
         viewModelModule,
         repositoryModule,
         recentContentModule,
+        chatTalkRoomModule,
         otherModule
     )