Fix PayPal billing flow and mobile admin UX

app/Services/Coupons/CouponService.php

@@ -4,7 +4,6 @@ namespace App\Services\Coupons;
 
 use App\Enums\CouponStatus;
 use App\Enums\CouponType;
-use App\Models\CheckoutSession;
 use App\Models\Coupon;
 use App\Models\CouponRedemption;
 use App\Models\Package;
@@ -36,12 +35,6 @@ class CouponService
 
     public function ensureCouponCanBeApplied(Coupon $coupon, Package $package, ?Tenant $tenant = null, ?string $provider = null): void
     {
-        if ($provider !== CheckoutSession::PROVIDER_PAYPAL && ! $coupon->lemonsqueezy_discount_id) {
-            throw ValidationException::withMessages([
-                'code' => __('marketing.coupon.errors.not_synced'),
-            ]);
-        }
-
         if (! $coupon->enabled_for_checkout) {
             throw ValidationException::withMessages([
                 'code' => __('marketing.coupon.errors.disabled'),