Schedule command not working

I created a new command named: DeleteOfferCommand and it looks like this:

class DeleteOfferCommand extends Command
{

    protected $signature = 'app:delete-offer';

    protected $description = 'Delete expired offers';

    public function handle()
    {
        $offers = Offer::all();

        foreach($offers as $offer){

            if(now() >= $offer->expires_at){    
                $offer->delete();
            }
        }
    }
}

In the tutorial, I see that there is a folder called start which I should use to intiate the command:

Artisan::add(new DeleteOfferCommand);

However, I do not see that folder on my side, also checked laravel documentation and didnt see that instruction.

Moving on, I went to my forge account and created a new schedule which looks like the following:

php /home/forge/mysite.com/artisan app:delete-offer

If I ssh into the server and run the artisan command, I am able to see the command.

app:delete-offer     Delete expired offers

But when I go to my site, I do not see any effect.

The offer expired about an hour ago but It wasnt delete.

Anything I need to add to make my code work?

The offer expired about an hour ago but It wasnt delete.

In case needed, this is how I save the offer in my controller:

public function store(Request $request)
{
    $this->validate($request, [
        'offer_price' => 'required',
        'offer_period' => 'required',
        'offer_message' => 'required',
    ]);
    $expires_at = now()->addMinutes($request->offer_period);
    
            $this->validate($request, [
                'cash_amount' => 'required',
            ]);
            $offer = Offer::Create([
                'user_id' => Auth::id(),
                'property_id' => 2,
                'offer_price' => $request->offer_price,
                'offer_period' => $request->offer_period,
                'offer_message' => $request->offer_message,
                'cash_amount' => $request->cash_amount,
                'buyer_type' => $request->buyer_type,
                'expires_at' => $expires_at,
            ]);
}

Anything I need to add to make my code work?