feat: 캔 엔티티 currency - length 3으로 고정하여 CHAR(3)에 대응되도록 수정

src/main/kotlin/kr/co/vividnext/sodalive/can/Can.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.can
 
 import kr.co.vividnext.sodalive.common.BaseEntity
 import java.math.BigDecimal
+import javax.persistence.Column
 import javax.persistence.Entity
 import javax.persistence.EnumType
 import javax.persistence.Enumerated
@@ -11,7 +12,9 @@ data class Can(
     var title: String,
     var can: Int,
     var rewardCan: Int,
+    @Column(precision = 10, scale = 4, nullable = false)
     var price: BigDecimal,
+    @Column(length = 3, nullable = false)
     var currency: String,
     @Enumerated(value = EnumType.STRING)
     var status: CanStatus