fix: coupon join column

Author: vumrra

src/main/kotlin/gogo/gogostage/domain/coupon/result/persistence/CouponResult.kt

@@ -13,7 +13,7 @@ class CouponResult (
     @Column(name = "id", nullable = false)
     val id: Long = 0,
 
-    @Column(name = "coupon_id", nullable = false)
+    @JoinColumn(name = "coupon_id", nullable = false)
     @OneToOne(cascade = [(CascadeType.ALL)], fetch = FetchType.LAZY)
     val coupon: Coupon,
 

src/main/kotlin/gogo/gogostage/domain/coupon/root/persistence/Coupon.kt

@@ -11,7 +11,7 @@ class Coupon (
     @Column(name = "id", nullable = false)
     val id: String,
 
-    @Column(name = "stage_id", nullable = false)
+    @JoinColumn(name = "stage_id", nullable = false)
     @ManyToOne(fetch = FetchType.LAZY)
     val stage: Stage,