feat(home): 인기 커뮤니티 게시글 가격을 응답한다

src/test/kotlin/kr/co/vividnext/sodalive/v2/api/home/dto/HomeRecommendationResponseTest.kt

@@ -48,6 +48,7 @@ class HomeRecommendationResponseTest {
                     imageUrl = "https://cdn.test/community/image.png",
                     audioUrl = "https://cdn.test/community/audio.mp3",
                     content = "community content",
+                    price = 9,
                     createdAt = "2026-06-01T00:00:00Z",
                     likeCount = 7L,
                     commentCount = 8L,
@@ -64,6 +65,7 @@ class HomeRecommendationResponseTest {
         assertEquals(5L, json["popularCommunityPosts"][0]["postId"].asLong())
         assertEquals("https://cdn.test/community/image.png", json["popularCommunityPosts"][0]["imageUrl"].asText())
         assertEquals("https://cdn.test/community/audio.mp3", json["popularCommunityPosts"][0]["audioUrl"].asText())
+        assertEquals(9, json["popularCommunityPosts"][0]["price"].asInt())
         assertEquals(true, json["popularCommunityPosts"][0]["existOrdered"].asBoolean())
     }
 }