Implemented roles and action timestamps. Added oermissions selector and interfaces

Moonlight.Frontend/Models/Permission.cs

@@ -0,0 +1,17 @@
+using System.Diagnostics.CodeAnalysis;
+
+namespace Moonlight.Frontend.Models;
+
+public class Permission
+{
+    public string Identifier { get; init; }
+    public string Name { get; init; }
+    public string Description { get; init; }
+    
+    public Permission(string identifier, string name, string description)
+    {
+        Identifier = identifier;
+        Name = name;
+        Description = description;
+    }
+}