feat: MonthlyRanking 엔티티 추가 및 월별 랭킹 정보 정의

Author: rnqhstmd

apps/commerce-api/src/main/java/com/loopers/domain/ranking/MonthlyRanking.java

@@ -0,0 +1,30 @@
+package com.loopers.domain.ranking;
+
+import com.loopers.infrastructure.converter.YearMonthAttributeConverter;
+import jakarta.persistence.*;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.YearMonth;
+
+@Entity
+@Getter
+@Table(name = "mv_product_rank_monthly")
+@NoArgsConstructor(access = lombok.AccessLevel.PROTECTED)
+public class MonthlyRanking {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(name = "monthly_rank")
+    private int rank;
+
+    private Long productId;
+
+    private double score;
+
+    @Convert(converter = YearMonthAttributeConverter.class)
+    @Column(name = "month_period")
+    private YearMonth monthPeriod;
+}