feat(home-live): 현재 진행 중 라이브 응답 모델을 추가한다

src/main/kotlin/kr/co/vividnext/sodalive/v2/api/home/live/dto/HomeOnAirLiveResponse.kt

@@ -0,0 +1,17 @@
+package kr.co.vividnext.sodalive.v2.api.home.live.dto
+
+data class HomeOnAirLivePageResponse(
+    val items: List<HomeOnAirLiveResponse>,
+    val page: Int,
+    val size: Int,
+    val hasNext: Boolean
+)
+
+data class HomeOnAirLiveResponse(
+    val roomId: Long,
+    val creatorNickname: String,
+    val creatorProfileImage: String,
+    val title: String,
+    val price: Int,
+    val beginDateTimeUtc: String
+)

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

@@ -0,0 +1,40 @@
+package kr.co.vividnext.sodalive.v2.api.home.live.dto
+
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
+
+class HomeOnAirLiveResponseTest {
+    private val objectMapper = jacksonObjectMapper()
+
+    @Test
+    fun shouldSerializeOnAirLivePageResponse() {
+        val response = HomeOnAirLivePageResponse(
+            items = listOf(
+                HomeOnAirLiveResponse(
+                    roomId = 1L,
+                    creatorNickname = "creator",
+                    creatorProfileImage = "https://cdn.test/profile.png",
+                    title = "paid live",
+                    price = 30,
+                    beginDateTimeUtc = "2026-06-26T12:30:00Z"
+                )
+            ),
+            page = 0,
+            size = 20,
+            hasNext = true
+        )
+
+        val json = objectMapper.readTree(objectMapper.writeValueAsString(response))
+
+        assertEquals(1L, json["items"][0]["roomId"].asLong())
+        assertEquals("creator", json["items"][0]["creatorNickname"].asText())
+        assertEquals("https://cdn.test/profile.png", json["items"][0]["creatorProfileImage"].asText())
+        assertEquals("paid live", json["items"][0]["title"].asText())
+        assertEquals(30, json["items"][0]["price"].asInt())
+        assertEquals("2026-06-26T12:30:00Z", json["items"][0]["beginDateTimeUtc"].asText())
+        assertEquals(0, json["page"].asInt())
+        assertEquals(20, json["size"].asInt())
+        assertEquals(true, json["hasNext"].asBoolean())
+    }
+}