fix: user

src/main/java/fr/la_banquise/backend/data/model/Instance.java

@@ -28,7 +28,7 @@ public class Instance {
     public Long port;
     public Container container;
 
-    @JsonBackReference
+    //@JsonBackReference
     @ManyToOne
     @JoinColumn(name = "user_id", nullable = false)
     public User owner;

src/main/java/fr/la_banquise/backend/data/model/Sujet.java

@@ -11,6 +11,9 @@ import jakarta.persistence.ManyToMany;
 import jakarta.persistence.SequenceGenerator;
 import jakarta.persistence.Table;
 import java.util.List;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+
 import lombok.AllArgsConstructor;
 import lombok.NoArgsConstructor;
 
@@ -36,6 +39,7 @@ public class Sujet {
         joinColumns = @JoinColumn(name = "sujet_id"),
         inverseJoinColumns = @JoinColumn(name = "user_id")
     )
+    @JsonIgnore
     public List<User> respos;
 
     public Sujet(String name, String description, String pdfLink,

src/main/java/fr/la_banquise/backend/data/model/User.java

@@ -40,7 +40,7 @@ public class User {
     @Password public String password;
     @Roles public String role;
 
-    @JsonManagedReference
+    //@JsonManagedReference
     @OneToMany(mappedBy = "owner", cascade = CascadeType.ALL)
     public List<Instance> instances;
 
@@ -57,6 +57,4 @@ public class User {
         this.role = role;
         this.instances = instances;
     }
-
-    //public User() {}
 }