fix(chat-room): 채팅 아이템 UI, 메시지 입력 창 UI

- 채팅 아이템이 화면을 벗어나는 버그 수정
- 메시지 입력창 글자크기 14sp, rounded corner 32dp

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

@@ -35,6 +35,20 @@ sealed class ChatListItem {
 
 class ChatMessageAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
 
+    // 타이핑 인디케이터 표시용 정보(캐릭터 이름/프로필)
+    private var typingName: String? = null
+    private var typingProfileUrl: String? = null
+
+    fun setTypingInfo(name: String?, profileUrl: String?) {
+        typingName = name
+        typingProfileUrl = profileUrl
+        // 표시 중이면 인디케이터 UI를 갱신
+        if (isRecyclerViewAttached) {
+            val idx = findTypingIndicatorIndex()
+            if (idx >= 0) notifyItemChanged(idx)
+        }
+    }
+
     // 테스트/비연결 환경에서 notify* 호출로 인한 NPE 방지용 플래그
     private var isRecyclerViewAttached: Boolean = false
 
@@ -287,7 +301,7 @@ class ChatMessageAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
             }
 
             is TypingIndicatorViewHolder -> {
-                holder.bind()
+                holder.bind(typingName, typingProfileUrl)
             }
         }
     }
@@ -300,8 +314,10 @@ class ChatMessageAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
     ) : RecyclerView.ViewHolder(binding.root) {
         fun bind(data: ChatMessage, showTime: Boolean, isGrouped: Boolean) {
             binding.tvMessage.text = data.message
+            // 화면 너비의 65%를 최대 폭으로 적용
+            binding.tvMessage.maxWidth = (itemView.resources.displayMetrics.widthPixels * 0.65f).toInt()
             binding.tvTime.text = formatMessageTime(data.createdAt)
-            binding.tvTime.visibility = if (showTime) View.VISIBLE else View.INVISIBLE
+            binding.tvTime.visibility = if (showTime) View.VISIBLE else View.GONE
 
             // 상태에 따른 시각적 피드백: 전송중은 약간 투명, 실패는 더 투명
             val alpha = when (data.status) {
@@ -365,8 +381,9 @@ class ChatMessageAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
     ) : RecyclerView.ViewHolder(binding.root) {
         fun bind(data: ChatMessage, displayName: String?, isGrouped: Boolean, showTime: Boolean) {
             binding.tvMessage.text = data.message
+            binding.tvMessage.maxWidth = (itemView.resources.displayMetrics.widthPixels * 0.65f).toInt()
             binding.tvTime.text = formatMessageTime(data.createdAt)
-            binding.tvTime.visibility = if (showTime) View.VISIBLE else View.INVISIBLE
+            binding.tvTime.visibility = if (showTime) View.VISIBLE else View.GONE
 
             // 그룹화: isGrouped가 true면 프로필/이름 숨김
             binding.ivProfile.visibility = if (isGrouped) View.INVISIBLE else View.VISIBLE
@@ -438,7 +455,12 @@ class ChatMessageAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
         private val binding: ItemChatTypingIndicatorBinding
     ) : RecyclerView.ViewHolder(binding.root) {
 
-        fun bind() {
+        fun bind(name: String?, profileUrl: String?) {
+            // 이름/프로필 표시
+            binding.tvName.text = name ?: ""
+            binding.tvName.visibility = View.VISIBLE
+            binding.ivProfile.visibility = View.VISIBLE
+            loadProfileImage(binding.ivProfile, profileUrl)
             startTypingAnimation()
         }
 
@@ -492,7 +514,7 @@ class ChatMessageAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
     override fun onViewAttachedToWindow(holder: RecyclerView.ViewHolder) {
         super.onViewAttachedToWindow(holder)
         if (holder is TypingIndicatorViewHolder) {
-            holder.bind()
+            holder.bind(typingName, typingProfileUrl)
         }
     }
 

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

@@ -3,6 +3,7 @@ package kr.co.vividnext.sodalive.chat.talk.room
 import android.annotation.SuppressLint
 import android.content.Context
 import android.content.Intent
+import android.graphics.Rect
 import android.text.Editable
 import android.text.TextWatcher
 import android.view.View
@@ -18,6 +19,7 @@ import kr.co.vividnext.sodalive.base.BaseActivity
 import kr.co.vividnext.sodalive.chat.character.detail.CharacterType
 import kr.co.vividnext.sodalive.common.SharedPreferenceManager
 import kr.co.vividnext.sodalive.databinding.ActivityChatRoomBinding
+import kr.co.vividnext.sodalive.extensions.dpToPx
 import org.koin.android.ext.android.inject
 
 class ChatRoomActivity : BaseActivity<ActivityChatRoomBinding>(
@@ -85,6 +87,9 @@ class ChatRoomActivity : BaseActivity<ActivityChatRoomBinding>(
     fun setCharacterInfo(info: CharacterInfo) {
         characterInfo = info
         bindHeader(info)
+        if (this::chatAdapter.isInitialized) {
+            chatAdapter.setTypingInfo(info.name, info.profileImageUrl)
+        }
     }
 
     /** 5.3: 헤더 바인딩 구현 (프로필, 이름, 타입 배지) */
@@ -122,6 +127,37 @@ class ChatRoomActivity : BaseActivity<ActivityChatRoomBinding>(
         }
         binding.rvMessages.layoutManager = layoutManager
 
+        binding.rvMessages.addItemDecoration(object : RecyclerView.ItemDecoration() {
+            override fun getItemOffsets(
+                outRect: Rect,
+                view: View,
+                parent: RecyclerView,
+                state: RecyclerView.State
+            ) {
+                super.getItemOffsets(outRect, view, parent, state)
+
+                outRect.left = 13.3f.dpToPx().toInt()
+                outRect.right = 13.3f.dpToPx().toInt()
+
+                when (parent.getChildAdapterPosition(view)) {
+                    0 -> {
+                        outRect.top = 0
+                        outRect.bottom = 10f.dpToPx().toInt()
+                    }
+
+                    chatAdapter.itemCount - 1 -> {
+                        outRect.top = 10f.dpToPx().toInt()
+                        outRect.bottom = 0
+                    }
+
+                    else -> {
+                        outRect.top = 10f.dpToPx().toInt()
+                        outRect.bottom = 10f.dpToPx().toInt()
+                    }
+                }
+            }
+        })
+
         chatAdapter = ChatMessageAdapter().apply {
             // RecyclerView에 연결하기 전에 안정 ID를 활성화해야 함
             setHasStableIds(true)
@@ -133,6 +169,12 @@ class ChatRoomActivity : BaseActivity<ActivityChatRoomBinding>(
         }
         binding.rvMessages.adapter = chatAdapter
 
+        // 현재 보유 중인 캐릭터 프로필/이름을 타이핑 인디케이터에도 반영
+        chatAdapter.setTypingInfo(
+            characterInfo?.name,
+            characterInfo?.profileImageUrl
+        )
+
         // 상단 도달 시 이전 메시지 로드
         binding.rvMessages.addOnScrollListener(object : RecyclerView.OnScrollListener() {
             override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {