Structurare backend

backend/Core/Entities/MedicalHistory.cs

@@ -0,0 +1,20 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Core.Entities
+{
+    public class MedicalHistory
+    {
+        public MedicalHistory()
+        {
+            Id = Guid.NewGuid();
+        }
+
+        [Key]
+        public Guid Id { get; private set; }
+        public Guid UserId { get; private set; }
+        public byte[] Description { get; private set; } = [];
+
+        public void SetUserId(Guid userId) { UserId = userId; }
+        public void SetDescription(byte[] description) { Description = description; }
+    }
+}