fix(comment): 삭제 댓글 v1 응답을 tombstone 으로 (#13174 후속)

cmd/api/main.go

@@ -2761,7 +2761,8 @@ func main() {
 				v1handler.OverrideIPForAdmin(transformed, comments)
 			}
 			for i, comment := range comments {
-				if comment.WrEditCount > 0 {
+				// 삭제 댓글 tombstone 에는 부가 메타를 얹지 않는다 (#13174 후속)
+				if comment.WrEditCount > 0 && comment.WrDeletedAt == nil {
 					transformed[i]["edit_count"] = comment.WrEditCount
 				}
 			}

internal/handler/v1/transform.go

@@ -350,6 +350,20 @@ func TransformToV1PostsSummary(posts []*gnuboard.G5Write, noticeIDs map[int]bool
 // TransformToV1Comment converts G5Write (comment) to v1 API response format
 func TransformToV1Comment(w *gnuboard.G5Write) map[string]any {
 	depth := len(w.WrCommentReply)
+	// #13174 후속: 삭제 댓글은 tombstone 만 — 원문·작성자·IP 가 응답에 실리면
+	// 클라이언트 가림과 무관하게 유출이다. 글(maskedDeletedV1Post)과 동일 원칙.
+	// depth·post_id·created_at 은 스레드 구조 유지에 필요해 남긴다.
+	if w.WrDeletedAt != nil {
+		return map[string]any{
+			"id":           w.WrID,
+			"post_id":      w.WrParent,
+			"content":      "",
+			"depth":        depth,
+			"created_at":   w.WrDatetime.Format(time.RFC3339),
+			"deleted_at":   w.WrDeletedAt.Format(time.RFC3339),
+			"self_deleted": w.WrDeletedBy != nil && *w.WrDeletedBy == w.MbID,
+		}
+	}
 	result := map[string]any{
 		"id":         w.WrID,
 		"post_id":    w.WrParent,
@@ -364,9 +378,6 @@ func TransformToV1Comment(w *gnuboard.G5Write) map[string]any {
 		"updated_at": parseWrLast(w.WrLast, w.WrDatetime),
 		"is_secret":  strings.Contains(w.WrOption, "secret"),
 	}
-	if w.WrDeletedAt != nil {
-		result["deleted_at"] = w.WrDeletedAt.Format(time.RFC3339)
-	}
 	if w.WrDeletedBy != nil {
 		result["deleted_by"] = *w.WrDeletedBy
 	}

internal/handler/v1/transform_test.go

@@ -292,3 +292,30 @@ func TestTransformToV1PostDetailUnmaskedKeepsOriginal(t *testing.T) {
 		t.Error("일반 상세 tombstone 에 content 가 실렸다")
 	}
 }
+
+// #13174 후속: 삭제 댓글 tombstone — 원문·작성자·IP 서버 drop
+func TestTransformToV1CommentDeletedTombstone(t *testing.T) {
+	deletedAt := time.Now()
+	author := "writer"
+	c := &gnuboard.G5Write{
+		WrID: 3, WrParent: 100, WrContent: "원문", WrName: "닉", MbID: author,
+		WrIP: "1.2.3.4", WrDatetime: time.Now(),
+		WrDeletedAt: &deletedAt, WrDeletedBy: &author,
+	}
+	result := TransformToV1Comment(c)
+	want := map[string]bool{
+		"id": true, "post_id": true, "content": true, "depth": true,
+		"created_at": true, "deleted_at": true, "self_deleted": true,
+	}
+	for k := range result {
+		if !want[k] {
+			t.Errorf("삭제 댓글 tombstone 에 예상 밖 키 %q (값 %v)", k, result[k])
+		}
+	}
+	if result["content"] != "" {
+		t.Errorf("삭제 댓글 원문이 남았다: %v", result["content"])
+	}
+	if result["self_deleted"] != true {
+		t.Errorf("자진삭제인데 self_deleted=%v", result["self_deleted"])
+	}
+}