Add loadout names (#31303)

* Add loadout names

Did it for AI, breaking change for pgsql + migrations in general. Nothing atm uses it.

* the box

* Spawning cherry pick

* Fix nit

* revert

* Final cleanup

* Real

* Name UI fix

* Migrations

* a

* Review

* Re-run migrations

---------

Co-authored-by: Pieter-Jan Briers <pieterjan.briers+git@gmail.com>

Content.Server.Database/Model.cs

@@ -480,6 +480,12 @@ namespace Content.Server.Database
         /// </summary>
         public string RoleName { get; set; } = string.Empty;
 
+        /// <summary>
+        /// Custom name of the role loadout if it supports it.
+        /// </summary>
+        [MaxLength(256)]
+        public string? EntityName { get; set; }
+
         /// <summary>
         /// Store the saved loadout groups. These may get validated and removed when loaded at runtime.
         /// </summary>