Implemented roles and action timestamps. Added oermissions selector and interfaces

Moonlight.Api/Database/DatabaseRepository.cs

@@ -1,4 +1,5 @@
 using Microsoft.EntityFrameworkCore;
+using Moonlight.Api.Database.Interfaces;
 
 namespace Moonlight.Api.Database;
 
@@ -17,6 +18,12 @@ public class DatabaseRepository<T> where T : class
 
     public async Task<T> AddAsync(T entity)
     {
+        if (entity is IActionTimestamps actionTimestamps)
+        {
+            actionTimestamps.CreatedAt = DateTimeOffset.UtcNow;
+            actionTimestamps.UpdatedAt = DateTimeOffset.UtcNow;
+        }
+        
         var final = Set.Add(entity);
         await DataContext.SaveChangesAsync();
         return final.Entity;
@@ -24,6 +31,9 @@ public class DatabaseRepository<T> where T : class
 
     public async Task UpdateAsync(T entity)
     {
+        if (entity is IActionTimestamps actionTimestamps)
+            actionTimestamps.UpdatedAt = DateTimeOffset.UtcNow;
+        
         Set.Update(entity);
         await DataContext.SaveChangesAsync();
     }