Restore Paystack Inline in-page sheet/modal; stop separate-browser checkout.

Pass access_code through pay responses and launch PaystackPop from the shared sheet instead of window.open.

app/Http/Controllers/Public/EventRegistrationController.php

@@ -45,6 +45,9 @@ class EventRegistrationController extends Controller
         return response()->json([
             'paid'         => $result['paid'],
             'checkout_url' => $result['checkout_url'],
+                'access_code' => $result['access_code'] ?? null,
+                'public_key' => $result['public_key'] ?? null,
+                'callback_url' => $result['callback_url'] ?? null,
             'badge_code'   => $result['registration']->badge_code,
             'success_url'  => $this->confirmedUrl($qrCode, $result['registration'], $request->input('meet_return')),
         ]);

app/Services/Events/EventRegistrationService.php

@@ -178,6 +178,8 @@ class EventRegistrationService
             'registration' => $registration->fresh(),
             'paid' => true,
             'checkout_url' => $checkoutUrl,
+            'access_code' => isset($payOrder['access_code']) ? (string) $payOrder['access_code'] : null,
+            'public_key' => isset($payOrder['public_key']) ? (string) $payOrder['public_key'] : null,
         ];
     }