feat: create lootbox and rewards entity

backend/src/main/java/de/szut/casino/lootboxes/LootBoxEntity.java

@@ -0,0 +1,34 @@
+package de.szut.casino.lootboxes;
+
+import com.fasterxml.jackson.annotation.JsonBackReference;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import de.szut.casino.blackjack.CardEntity;
+import jakarta.persistence.*;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import org.hibernate.annotations.SQLRestriction;
+
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+@Getter
+@Setter
+@AllArgsConstructor
+@NoArgsConstructor
+public class LootBoxEntity {
+    @Id
+    @GeneratedValue
+    private Long id;
+
+    private String name;
+
+    @Column(precision = 19, scale = 2)
+    private BigDecimal price;
+
+    @OneToMany(mappedBy = "lootBox", cascade = CascadeType.ALL, orphanRemoval = true)
+    private List<RewardEntity> rewards = new ArrayList<>();
+}

backend/src/main/java/de/szut/casino/lootboxes/RewardEntity.java

@@ -0,0 +1,28 @@
+package de.szut.casino.lootboxes;
+
+import com.fasterxml.jackson.annotation.JsonBackReference;
+import com.fasterxml.jackson.annotation.JsonManagedReference;
+import de.szut.casino.blackjack.BlackJackGameEntity;
+import jakarta.persistence.*;
+
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+public class RewardEntity {
+    @Id
+    @GeneratedValue
+    private Long id;
+
+    @Column(precision = 19, scale = 2)
+    private BigDecimal value;
+
+    @Column(precision = 5, scale = 2)
+    private BigDecimal probability;
+
+    @ManyToOne
+    @JoinColumn(name = "lootBox_id", nullable = false)
+    @JsonBackReference
+    private LootBoxEntity lootBox;
+}

backend/src/main/resources/application.properties

@@ -2,7 +2,7 @@ spring.datasource.url=jdbc:postgresql://${DB_HOST:localhost}:5432/postgresdb
 spring.datasource.username=postgres_user
 spring.datasource.password=postgres_pass
 server.port=8080
-spring.jpa.hibernate.ddl-auto=update
+spring.jpa.hibernate.ddl-auto=create-drop
 stripe.secret.key=${STRIPE_SECRET_KEY:sk_test_51QrePYIvCfqz7ANgqam8rEwWcMeKiLOof3j6SCMgu2sl4sESP45DJxca16mWcYo1sQaiBv32CMR6Z4AAAGQPCJo300ubuZKO8I}
 stripe.webhook.secret=whsec_746b6a488665f6057118bdb4a2b32f4916f16c277109eeaed5e8f8e8b81b8c15
 app.frontend-host=http://localhost:4200