EFCore .net6 Cosmos migration issue

.NET6 EFCore & Cosmos Migration issue. Need some help.

Hello folks. I am new in the world of .Net and I am facing an issue that Google has failed to help me solve. You're kind of my last regard.

So. I am trying to connect to an Azure Cosmos DB from my little HomeControlCenter Project using EFCore 6.0.3

The Error:

Unable to resolve service for type 'Microsoft.EntityFrameworkCore.Migrations.IMigrator'. This is often because no database provider has been configured for this DbContext. A provider can be configured by overriding the 'DbContext.OnConfiguring' method or by using 'AddDbContext' on the application service provider. If 'AddDbContext' is used, then also ensure that your DbContext type accepts a DbContextOptions<TContext>
object in its constructor and passes it to the base constructor for DbContext.

My Program.cs:

builder.Services.AddDbContext<ControlCenterContext>(options =>
options.UseCosmos(builder.Configuration.GetConnectionString("DefaultConnection"), "ToDoList"));

My DbContext Impl:

public class ControlCenterContext : DbContext
{
    public ControlCenterContext(DbContextOptions<ControlCenterContext> options) : base(options)
    {
        
    }
}

I also tried to use an override of OnConfiguring instead of the Program.cs line.

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        => optionsBuilder.UseCosmos(
            "<AccountEndpoint>",
            "<accountKey>",
            databaseName: "ToDoList");
    

Nothing helped. When ever I run dotnet ef migrations add "initialSetup" I get the error mentioned above.

I read the error carefully and as you can see, I did apply all the necessary constructor params & other additions... I even tried to create a vanilla project and do the same all over again...