feat(tests): 添加结算相关功能的测试用例，增强代码覆盖率

app/Http/Controllers/Api/V1/Admin/AgentSettlement/AgentSettlementReportShowController.php

@@ -5,6 +5,7 @@ namespace App\Http\Controllers\Api\V1\Admin\AgentSettlement;
 use App\Http\Controllers\Controller;
 use App\Services\AgentSettlement\AgentSettlementReportQueryService;
 use App\Support\AdminAgentScope;
+use App\Support\AdminAgentSettlementScope;
 use App\Support\AgentSettlementPeriodWindow;
 use App\Support\ApiResponse;
 use Illuminate\Http\JsonResponse;
@@ -37,6 +38,9 @@ final class AgentSettlementReportShowController extends Controller
         }
 
         $periodId = (int) $request->query('settlement_period_id', 0);
+        if ($periodId > 0) {
+            abort_if(! AdminAgentSettlementScope::periodAccessible($admin, $periodId), 403);
+        }
         $period = $this->resolvePeriod($periodId, $request);
 
         $data = match ($type) {