feat(ranking): 크리에이터 랭킹 홈 API를 추가한다

src/main/kotlin/kr/co/vividnext/sodalive/configs/SecurityConfig.kt

@@ -102,6 +102,7 @@ class SecurityConfig(
             .antMatchers(HttpMethod.GET, "/api/chat/original/list").permitAll()
             .antMatchers(HttpMethod.POST, "/charge/payverse/webhook").permitAll()
             .antMatchers(HttpMethod.GET, "/api/v2/home/recommendations").permitAll()
+            .antMatchers(HttpMethod.GET, "/api/v2/home/rankings/creators").permitAll()
             // 페이지네이션 하위 경로(/lives, /debut-creators 등)는 인증 필수
             .antMatchers(HttpMethod.GET, "/api/v2/home/recommendations/**").authenticated()
             .anyRequest().authenticated()

src/main/kotlin/kr/co/vividnext/sodalive/v2/api/home/adapter/in/web/CreatorRankingController.kt

@@ -0,0 +1,22 @@
+package kr.co.vividnext.sodalive.v2.api.home.adapter.`in`.web
+
+import kr.co.vividnext.sodalive.common.ApiResponse
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.v2.api.home.application.HomeCreatorRankingFacade
+import org.springframework.security.core.annotation.AuthenticationPrincipal
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+@RequestMapping("/api/v2/home/rankings")
+class CreatorRankingController(
+    private val homeCreatorRankingFacade: HomeCreatorRankingFacade
+) {
+    @GetMapping("/creators")
+    fun getCreatorRankings(
+        @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?
+    ) = run {
+        ApiResponse.ok(homeCreatorRankingFacade.getCreatorRankings(member))
+    }
+}

src/main/kotlin/kr/co/vividnext/sodalive/v2/api/home/application/HomeCreatorRankingFacade.kt

@@ -0,0 +1,17 @@
+package kr.co.vividnext.sodalive.v2.api.home.application
+
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.v2.api.home.dto.ranking.CreatorRankingResponse
+import kr.co.vividnext.sodalive.v2.ranking.application.CreatorRankingQueryService
+import org.springframework.stereotype.Component
+
+@Component
+class HomeCreatorRankingFacade(
+    private val creatorRankingQueryService: CreatorRankingQueryService
+) {
+    fun getCreatorRankings(member: Member?): CreatorRankingResponse {
+        return CreatorRankingResponse.from(
+            creatorRankingQueryService.getCreatorRankings(viewerMemberId = member?.id)
+        )
+    }
+}

src/main/kotlin/kr/co/vividnext/sodalive/v2/api/home/dto/ranking/CreatorRankingResponse.kt

@@ -0,0 +1,42 @@
+package kr.co.vividnext.sodalive.v2.api.home.dto.ranking
+
+import com.fasterxml.jackson.annotation.JsonProperty
+import kr.co.vividnext.sodalive.v2.ranking.application.CreatorRankingResult
+import kr.co.vividnext.sodalive.v2.ranking.domain.CreatorRankingItem
+
+data class CreatorRankingResponse(
+    val showRankChange: Boolean,
+    val items: List<CreatorRankingResponseItem>
+) {
+    companion object {
+        fun from(result: CreatorRankingResult): CreatorRankingResponse {
+            return CreatorRankingResponse(
+                showRankChange = result.showRankChange,
+                items = result.items.map { CreatorRankingResponseItem.from(it) }
+            )
+        }
+    }
+}
+
+data class CreatorRankingResponseItem(
+    val rank: Int,
+    val rankChange: Int?,
+    @JsonProperty("isNew")
+    val isNew: Boolean,
+    val creatorId: Long,
+    val nickname: String,
+    val profileImageUrl: String?
+) {
+    companion object {
+        fun from(item: CreatorRankingItem): CreatorRankingResponseItem {
+            return CreatorRankingResponseItem(
+                rank = item.rank,
+                rankChange = item.rankChange,
+                isNew = item.isNew,
+                creatorId = item.creatorId,
+                nickname = item.nickname,
+                profileImageUrl = item.profileImageUrl
+            )
+        }
+    }
+}