add tests batch 20

app/Http/Controllers/Api/Finance/RefundController.php

@@ -48,7 +48,7 @@ class RefundController extends BaseApiController
     public function show(int $refundId): JsonResponse
     {
         $refund = $this->queryService->find($refundId);
-        if (! $refund) {
+        if (!$refund) {
             return response()->json(['ok' => false, 'message' => 'Refund not found.'], 404);
         }
 
@@ -71,7 +71,6 @@ class RefundController extends BaseApiController
             $result = $this->requestService->requestRefund($payload, $guard);
         } catch (\Throwable $e) {
             Log::error('Refund request failed.', ['error' => $e->getMessage()]);
-
             return response()->json(['ok' => false, 'message' => 'Failed to submit refund request.'], 500);
         }
 
@@ -213,6 +212,9 @@ class RefundController extends BaseApiController
         ]);
     }
 
+    /**
+     * @return int|JsonResponse
+     */
     private function authenticatedUserIdOrUnauthorized(): int|JsonResponse
     {
         $userId = (int) (auth()->id() ?? 0);