add test batches

tests/Unit/Services/Events/EventChargeQueryServiceTest.php

@@ -26,7 +26,7 @@ class EventChargeQueryServiceTest extends TestCase
             'updated_at' => now(),
         ]);
 
-        $service = new EventChargeQueryService;
+        $service = new EventChargeQueryService();
         $result = $service->list(['per_page' => 10, 'page' => 1]);
 
         $this->assertSame(1, $result['pagination']['total']);

tests/Unit/Services/Events/EventListServiceTest.php

@@ -38,7 +38,7 @@ class EventListServiceTest extends TestCase
             ],
         ]);
 
-        $service = new EventListService;
+        $service = new EventListService();
         $result = $service->list(['active' => true, 'per_page' => 10]);
 
         $this->assertSame(1, $result['pagination']['total']);

tests/Unit/Services/Events/EventStudentChargeServiceTest.php

@@ -31,7 +31,7 @@ class EventStudentChargeServiceTest extends TestCase
             'semester' => 'Fall',
         ]);
 
-        $service = new EventStudentChargeService;
+        $service = new EventStudentChargeService();
         $rows = $service->listStudentsWithCharges(10, '2025-2026', 'Fall');
 
         $this->assertTrue($rows[0]['charged']);