docs(community): 비밀 댓글 구현 계획을 갱신한다

docs/20260706_커뮤니티_게시물_상세_API/plan-task.md

@@ -186,6 +186,8 @@ data class CreatorChannelCommunityCommentResponse(
     val writerProfileImageUrl: String,
     val writerNickname: String,
     val content: String,
+    @JsonProperty("isSecret")
+    val isSecret: Boolean,
     val createdAtUtc: String,
     val latestReply: CreatorChannelCommunityReplyResponse?
 ) {
@@ -197,6 +199,7 @@ data class CreatorChannelCommunityCommentResponse(
                 writerProfileImageUrl = comment.writerProfileImageUrl,
                 writerNickname = comment.writerNickname,
                 content = comment.content,
+                isSecret = comment.isSecret,
                 createdAtUtc = comment.createdAt.toUtcIso(),
                 latestReply = comment.latestReply?.let(CreatorChannelCommunityReplyResponse::from)
             )
@@ -278,6 +281,7 @@ data class CreatorChannelCommunityComment(
     val writerProfileImageUrl: String,
     val writerNickname: String,
     val content: String,
+    val isSecret: Boolean,
     val createdAt: LocalDateTime,
     val latestReply: CreatorChannelCommunityReply?
 )
@@ -353,6 +357,7 @@ data class CreatorChannelCommunityCommentRecord(
     val writerProfilePath: String?,
     val writerNickname: String,
     val content: String,
+    val isSecret: Boolean,
     val createdAt: LocalDateTime
 )