Fix: badge_achievement unique key 추가 (#280)

src/main/java/com/dnd/runus/infrastructure/persistence/jpa/badge/entity/BadgeAchievementEntity.java

@@ -12,6 +12,10 @@
 import static jakarta.persistence.FetchType.LAZY;
 import static lombok.AccessLevel.PROTECTED;
 
+@Table(
+        uniqueConstraints = {
+            @UniqueConstraint(columnNames = {"badge_id", "member_id"}),
+        })
 @Getter
 @Entity(name = "badge_achievement")
 @NoArgsConstructor(access = PROTECTED)

src/main/resources/db/migration/V5.0.13__badge_achievement_unique.sql

@@ -0,0 +1,2 @@
+ALTER TABLE badge_achievement
+    ADD CONSTRAINT unique_badge_member UNIQUE (badge_id, member_id);