[feat] 랭킹 도메인, repository 추가

src/main/java/com/mookive/mookive_backend/ranking/domain/entity/Ranking.java

@@ -0,0 +1,35 @@
+package com.mookive.mookive_backend.ranking.domain.entity;
+
+import com.mookive.mookive_backend.movie.domain.entity.Movie;
+import com.mookive.mookive_backend.user.domain.entity.User;
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Ranking {
+
+    @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @ManyToOne
+    @JoinColumn(name = "movie_id")
+    private Movie movie;
+
+    @ManyToOne
+    @JoinColumn(name = "user_id")
+    private User user;
+
+    private int rankingNumber;
+
+    @Builder
+    public Ranking(Movie movie, User user, int rankingNumber) {
+        this.movie = movie;
+        this.user = user;
+        this.rankingNumber = rankingNumber;
+    }
+}

src/main/java/com/mookive/mookive_backend/ranking/domain/respository/RankingRepository.java

@@ -0,0 +1,7 @@
+package com.mookive.mookive_backend.ranking.domain.respository;
+
+import com.mookive.mookive_backend.ranking.domain.entity.Ranking;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface RankingRepository extends JpaRepository<Ranking, Long> {
+}