Persist deadmin to database, add admin suspension system (#34048)

Content.Server.Database/Model.cs

@@ -610,6 +610,16 @@ namespace Content.Server.Database
         [Key] public Guid UserId { get; set; }
         public string? Title { get; set; }
 
+        /// <summary>
+        /// If true, the admin is voluntarily deadminned. They can re-admin at any time.
+        /// </summary>
+        public bool Deadminned { get; set; }
+
+        /// <summary>
+        /// If true, the admin is suspended by an admin with <c>PERMISSIONS</c>. They will not have in-game permissions.
+        /// </summary>
+        public bool Suspended { get; set; }
+
         public int? AdminRankId { get; set; }
         public AdminRank? AdminRank { get; set; }
         public List<AdminFlag> Flags { get; set; } = default!;