Store terminal response in payment metadata after successful push

Author: damms005

src/Services/PaymentHandlers/PaystackTerminal/Terminal.php

@@ -122,6 +122,13 @@ public function pushToTerminal(Payment $payment): string
             throw new \Exception("Could not push to terminal. " . json_encode($responseJson));
         }
 
+        $payment->update([
+            'metadata' => [
+                'terminal-response' => $responseJson,
+                ...$payment->metadata,
+            ],
+        ]);
+
         return $responseJson['data']['id'];
     }