fix(architecture): corrections of architecture

RT.Infrastructure/Data/AppDbContext.cs

@@ -1,7 +1,7 @@
 using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore;
 using RT.Domain.Entities;
-using RT.Infrastructure.Identity;
+using RT.Domain.Identity;
 
 namespace RT.Infrastructure.Data;