Rebuild data storage system so that database dependencies get taken into account

src/HopFrame.Database/Models/Permission.cs

@@ -1,10 +1,26 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Text.Json.Serialization;
+
 namespace HopFrame.Database.Models;
 
-public sealed class Permission {
+public class Permission {
+    
+    [Key, Required, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
     public long Id { get; init; }
+    
+    [Required, MaxLength(255)]
     public string PermissionName { get; set; }
-    public Guid Owner { get; set; }
+    
+    [Required]
     public DateTime GrantedAt { get; set; }
+
+    [ForeignKey("UserId"), JsonIgnore]
+    public virtual User User { get; set; }
+
+    [ForeignKey("GroupName"), JsonIgnore]
+    public virtual PermissionGroup Group { get; set; }
+    
 }
 
-public interface IPermissionOwner {}
+public interface IPermissionOwner;