Add isHidden to Category, category CRUD tests, coverage improvements

- Add isHidden field to Category entity with migration (DEFAULT false for existing rows)
- Add isHidden checkbox to edit category template and "Masquee" badge on category list
- Save isHidden in editCategory controller method
- Fix Category.isActive() indentation
- Create CategoryTest with full coverage (14 tests): defaults, setters, setEvent logic, isActive, isHidden
- Add category CRUD tests to AccountControllerTest: add/edit/delete/reorder categories with access control
- Add cookie-consent tests for dev env early return and Cloudflare tunnel script
- Exclude PayoutPdfService from phpunit coverage and SonarQube analysis

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tests/Service/StripeServiceTest.php

@@ -9,11 +9,16 @@ class StripeServiceTest extends TestCase
 {
     private function createService(): StripeService
     {
-        return new StripeService('sk_test', 'whsec_test', 'https://example.com');
+        return new StripeService('sk_test', 'whsec_test', 'whsec_connect_test', 'https://example.com');
     }
 
     public function testVerifyWebhookSignatureReturnsNullOnInvalid(): void
     {
         self::assertNull($this->createService()->verifyWebhookSignature('{}', 'invalid'));
     }
+
+    public function testVerifyConnectWebhookSignatureReturnsNullOnInvalid(): void
+    {
+        self::assertNull($this->createService()->verifyConnectWebhookSignature('{}', 'invalid'));
+    }
 }