feat(character-detail): 캐릭터 상세 댓글 섹션 추가 및 데이터 바인딩

- 댓글 입력 필드 stroke(흰색 1dp stroke와 radius 5dp) 추가
- 입력 박스 내부 우측에 전송 아이콘(ic_message_send) 추가
- 배경 드로어블(#263238, radius 10dp) 추가
- CharacterCommentResponse에 comment(nullable) 필드 추가
- CharacterDetailActivity에서 latestComment/totalComments 바인딩 및 UI 분기 처리

app/src/main/java/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentDto.kt

@@ -0,0 +1,52 @@
+package kr.co.vividnext.sodalive.chat.character.comment
+
+import androidx.annotation.Keep
+import com.google.gson.annotations.SerializedName
+
+// Request DTOs
+@Keep
+data class CreateCharacterCommentRequest(
+    @SerializedName("comment") val comment: String
+)
+
+// Response DTOs
+// 댓글 Response
+// - 댓글 ID
+// - 댓글 쓴 Member 프로필 이미지
+// - 댓글 쓴 Member 닉네임
+// - 댓글 쓴 시간 timestamp(long)
+// - 답글 수
+
+@Keep
+data class CharacterCommentResponse(
+    @SerializedName("commentId") val commentId: Long,
+    @SerializedName("memberProfileImage") val memberProfileImage: String,
+    @SerializedName("memberNickname") val memberNickname: String,
+    @SerializedName("createdAt") val createdAt: Long,
+    @SerializedName("replyCount") val replyCount: Int,
+    @SerializedName("comment") val comment: String?
+)
+
+// 답글 Response 단건(목록 원소)
+// - 답글 ID
+// - 답글 쓴 Member 프로필 이미지
+// - 답글 쓴 Member 닉네임
+// - 답글 쓴 시간 timestamp(long)
+
+@Keep
+data class CharacterReplyResponse(
+    @SerializedName("replyId") val replyId: Long,
+    @SerializedName("memberProfileImage") val memberProfileImage: String,
+    @SerializedName("memberNickname") val memberNickname: String,
+    @SerializedName("createdAt") val createdAt: Long
+)
+
+// 댓글의 답글 조회 Response 컨테이너
+// - 원본 댓글 Response
+// - 답글 목록(위 사양의 필드 포함)
+
+@Keep
+data class CharacterCommentRepliesResponse(
+    @SerializedName("original") val original: CharacterCommentResponse,
+    @SerializedName("replies") val replies: List<CharacterReplyResponse>
+)

app/src/main/java/kr/co/vividnext/sodalive/chat/character/detail/CharacterDetailActivity.kt

@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.chat.character.detail
 
+import android.annotation.SuppressLint
 import android.content.Intent
 import android.graphics.Rect
 import android.os.Bundle
@@ -9,10 +10,12 @@ import androidx.core.net.toUri
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import coil.load
+import coil.transform.CircleCropTransformation
 import kr.co.vividnext.sodalive.R
 import kr.co.vividnext.sodalive.base.BaseActivity
 import kr.co.vividnext.sodalive.chat.talk.room.ChatRoomActivity
 import kr.co.vividnext.sodalive.common.LoadingDialog
+import kr.co.vividnext.sodalive.common.SharedPreferenceManager
 import kr.co.vividnext.sodalive.databinding.ActivityCharacterDetailBinding
 import kr.co.vividnext.sodalive.extensions.dpToPx
 import org.koin.androidx.viewmodel.ext.android.viewModel
@@ -119,6 +122,7 @@ class CharacterDetailActivity : BaseActivity<ActivityCharacterDetailBinding>(
         }
     }
 
+    @SuppressLint("SetTextI18n")
     private fun bindObservers() {
         viewModel.uiState.observe(this) { state ->
             // 1) 로딩 상태 처리
@@ -169,7 +173,8 @@ class CharacterDetailActivity : BaseActivity<ActivityCharacterDetailBinding>(
             binding.tvWorldviewContent.text = worldviewText
             // 먼저 전체 줄 수를 측정한 뒤 접힘 레이아웃 적용
             binding.tvWorldviewContent.post {
-                val totalLines = binding.tvWorldviewContent.layout?.lineCount ?: binding.tvWorldviewContent.lineCount
+                val totalLines = binding.tvWorldviewContent.layout?.lineCount
+                    ?: binding.tvWorldviewContent.lineCount
                 val needExpand = totalLines > 3
                 binding.llWorldviewExpand.visibility = if (needExpand) View.VISIBLE else View.GONE
                 // 표시 상태는 항상 접힘 상태로 시작
@@ -184,7 +189,8 @@ class CharacterDetailActivity : BaseActivity<ActivityCharacterDetailBinding>(
             binding.tvPersonalityContent.text = personalityText
             // 먼저 전체 줄 수를 측정한 뒤 접힘 레이아웃 적용
             binding.tvPersonalityContent.post {
-                val totalLines = binding.tvPersonalityContent.layout?.lineCount ?: binding.tvPersonalityContent.lineCount
+                val totalLines = binding.tvPersonalityContent.layout?.lineCount
+                    ?: binding.tvPersonalityContent.lineCount
                 val needExpand = totalLines > 3
                 binding.llPersonalityExpand.visibility = if (needExpand) View.VISIBLE else View.GONE
                 applyPersonalityCollapsedLayout()
@@ -213,6 +219,66 @@ class CharacterDetailActivity : BaseActivity<ActivityCharacterDetailBinding>(
                 binding.llOtherCharactersSection.visibility = View.VISIBLE
                 adapter.submitList(detail.others)
             }
+
+            // 댓글 섹션 바인딩
+            binding.tvCommentsCount.text = "${detail.totalComments}"
+            if (
+                detail.totalComments > 0 &&
+                detail.latestComment != null &&
+                detail.latestComment.comment.isNullOrBlank()
+            ) {
+                binding.llLatestComment.visibility = View.VISIBLE
+                binding.llNoComment.visibility = View.GONE
+
+                val latest = detail.latestComment
+                val profileUrl = latest.memberProfileImage
+                if (profileUrl.isNotBlank()) {
+                    binding.ivCommentProfile.load(profileUrl) {
+                        crossfade(true)
+                        placeholder(R.drawable.ic_placeholder_profile)
+                        error(R.drawable.ic_placeholder_profile)
+                        transformations(CircleCropTransformation())
+                    }
+                } else {
+                    binding.ivMyProfile.load(R.drawable.ic_placeholder_profile) {
+                        crossfade(true)
+                        placeholder(R.drawable.ic_placeholder_profile)
+                        error(R.drawable.ic_placeholder_profile)
+                        transformations(CircleCropTransformation())
+                    }
+                }
+
+                val commentText = latest.comment
+                binding.tvLatestComment.text = if (!commentText.isNullOrBlank()) {
+                    commentText
+                } else {
+                    latest.memberNickname
+                }
+            } else {
+                binding.llLatestComment.visibility = View.GONE
+                binding.llNoComment.visibility = View.VISIBLE
+
+                // 내 프로필 이미지는 SharedPreference의 profileImage 사용 (fallback: placeholder)
+                val myProfileUrl = SharedPreferenceManager.profileImage
+                if (myProfileUrl.isNotBlank()) {
+                    binding.ivMyProfile.load(myProfileUrl) {
+                        crossfade(true)
+                        placeholder(R.drawable.ic_placeholder_profile)
+                        error(R.drawable.ic_placeholder_profile)
+                        transformations(CircleCropTransformation())
+                    }
+                } else {
+                    binding.ivMyProfile.load(R.drawable.ic_placeholder_profile) {
+                        crossfade(true)
+                        placeholder(R.drawable.ic_placeholder_profile)
+                        error(R.drawable.ic_placeholder_profile)
+                        transformations(CircleCropTransformation())
+                    }
+                }
+
+                binding.ivSendComment.setOnClickListener {
+                }
+            }
         }
     }
 

app/src/main/java/kr/co/vividnext/sodalive/chat/character/detail/CharacterDetailResponse.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.chat.character.detail
 
 import androidx.annotation.Keep
 import com.google.gson.annotations.SerializedName
+import kr.co.vividnext.sodalive.chat.character.comment.CharacterCommentResponse
 
 @Keep
 data class CharacterDetailResponse(
@@ -16,7 +17,9 @@ data class CharacterDetailResponse(
     @SerializedName("originalTitle") val originalTitle: String?,
     @SerializedName("originalLink") val originalLink: String?,
     @SerializedName("characterType") val characterType: CharacterType,
-    @SerializedName("others") val others: List<OtherCharacter>
+    @SerializedName("others") val others: List<OtherCharacter>,
+    @SerializedName("latestComment") val latestComment: CharacterCommentResponse?,
+    @SerializedName("totalComments") val totalComments: Int
 )
 
 @Keep

app/src/main/res/drawable/bg_round_corner_10_263238.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <corners android:radius="10dp" />
+    <solid android:color="#263238" />
+</shape>

app/src/main/res/drawable/bg_round_corner_5_stroke_white.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <corners android:radius="5dp" />
+    <stroke
+        android:width="1dp"
+        android:color="@android:color/white" />
+    <solid android:color="@android:color/transparent" />
+</shape>

app/src/main/res/layout/activity_character_detail.xml

@@ -327,6 +327,139 @@
                     android:textSize="14sp" />
             </LinearLayout>
 
+
+            <!-- 댓글 섹션 -->
+            <LinearLayout
+                android:id="@+id/ll_comments_section"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginHorizontal="24dp"
+                android:layout_marginBottom="24dp"
+                android:background="@drawable/bg_round_corner_10_263238"
+                android:orientation="vertical"
+                android:paddingHorizontal="16dp"
+                android:paddingVertical="12dp">
+
+                <!-- 헤더: 댓글 (댓글 수) -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:gravity="center_vertical"
+                    android:orientation="horizontal">
+
+                    <TextView
+                        android:id="@+id/tv_comments_label"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:fontFamily="@font/pretendard_regular"
+                        android:text="댓글"
+                        android:textColor="@color/color_b0bec5"
+                        android:textSize="16sp" />
+
+                    <TextView
+                        android:id="@+id/tv_comments_count"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginStart="8dp"
+                        android:fontFamily="@font/pretendard_bold"
+                        android:textColor="@color/color_b0bec5"
+                        android:textSize="16sp"
+                        tools:text="0" />
+                </LinearLayout>
+
+                <!-- 내용 컨테이너 -->
+                <LinearLayout
+                    android:id="@+id/ll_comments_container"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="10dp"
+                    android:orientation="vertical">
+
+                    <!-- 댓글 있을 때 -->
+                    <LinearLayout
+                        android:id="@+id/ll_latest_comment"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:gravity="center_vertical"
+                        android:orientation="horizontal"
+                        android:visibility="gone"
+                        tools:ignore="UseCompoundDrawables">
+
+                        <ImageView
+                            android:id="@+id/iv_comment_profile"
+                            android:layout_width="36dp"
+                            android:layout_height="36dp"
+                            android:contentDescription="@null"
+                            android:src="@drawable/ic_placeholder_profile" />
+
+                        <TextView
+                            android:id="@+id/tv_latest_comment"
+                            android:layout_width="0dp"
+                            android:layout_height="wrap_content"
+                            android:layout_marginStart="12dp"
+                            android:layout_weight="1"
+                            android:fontFamily="@font/pretendard_regular"
+                            android:textColor="@color/white"
+                            android:textSize="16sp"
+                            tools:text="가장 최근 댓글 내용이 여기에 표시됩니다." />
+                    </LinearLayout>
+
+                    <!-- 댓글 없을 때 -->
+                    <LinearLayout
+                        android:id="@+id/ll_no_comment"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:gravity="center_vertical"
+                        android:orientation="horizontal">
+
+                        <ImageView
+                            android:id="@+id/iv_my_profile"
+                            android:layout_width="36dp"
+                            android:layout_height="36dp"
+                            android:contentDescription="@null"
+                            android:src="@drawable/ic_placeholder_profile" />
+
+                        <LinearLayout
+                            android:id="@+id/ll_comment_input_box"
+                            android:layout_width="match_parent"
+                            android:layout_height="wrap_content"
+                            android:layout_marginStart="12dp"
+                            android:background="@drawable/bg_round_corner_5_stroke_white"
+                            android:gravity="center_vertical"
+                            android:orientation="horizontal"
+                            android:paddingHorizontal="12dp"
+                            android:paddingVertical="8dp">
+
+                            <EditText
+                                android:id="@+id/et_comment_input"
+                                android:layout_width="0dp"
+                                android:layout_height="wrap_content"
+                                android:layout_marginEnd="4dp"
+                                android:layout_weight="1"
+                                android:background="@android:color/transparent"
+                                android:fontFamily="@font/pretendard_regular"
+                                android:hint="댓글을 입력해보세요"
+                                android:imeOptions="actionSend"
+                                android:importantForAutofill="no"
+                                android:inputType="textCapSentences|textMultiLine"
+                                android:maxLines="3"
+                                android:padding="0dp"
+                                android:textColor="@color/white"
+                                android:textColorHint="@color/color_7c7c80"
+                                android:textSize="14sp"
+                                tools:ignore="NestedWeights" />
+
+                            <ImageView
+                                android:id="@+id/iv_send_comment"
+                                android:layout_width="24dp"
+                                android:layout_height="24dp"
+                                android:contentDescription="@null"
+                                android:src="@drawable/ic_message_send" />
+                        </LinearLayout>
+                    </LinearLayout>
+                </LinearLayout>
+            </LinearLayout>
+
             <!-- 장르의 다른 캐릭터 섹션 -->
             <LinearLayout
                 android:id="@+id/ll_other_characters_section"