fix: resolve all quality gate failures — i18n key, typography tokens, PHPStan errors, style

- Add missing i18n key "LDAP attribute map could not be encoded" (de+en)
- Replace raw font-weight/line-height with design tokens in app-topbar.css
- Fix import ordering in SchedulerRunService.php (php-cs-fixer)
- Fix PHPStan mock chain errors in DebitorDetailServiceTest and TenantSsoServiceTest (PHPUnit 12 API)
- Simplify redundant comparison in NotificationService dedupe window
- Add PHPStan type hint for mock callback array in SchedulerJobFailedNotificationListenerTest
- Fix undefined variable and add flow-analysis suppression in login().php
- Increase dev PHP memory_limit to 1G for PHPStan (prod stays 256M)

All 6 quality gates now pass: QG-001 (1618 tests), QG-002 (0 errors),
QG-003 (6630 assertions), QG-006 (0 fixable), QG-008, QG-009.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lib/Service/Scheduler/SchedulerRunService.php

@@ -2,13 +2,13 @@
 
 namespace MintyPHP\Service\Scheduler;
 
+use MintyPHP\App\Module\ModuleEventDispatcher;
 use MintyPHP\Domain\Taxonomy\ScheduledJobRunStatus;
 use MintyPHP\Domain\Taxonomy\ScheduledJobTriggerType;
 use MintyPHP\Domain\Taxonomy\SchedulerRuntimeResult;
 use MintyPHP\Repository\Scheduler\ScheduledJobRepositoryInterface;
 use MintyPHP\Repository\Scheduler\ScheduledJobRunRepositoryInterface;
 use MintyPHP\Repository\Scheduler\SchedulerRuntimeRepositoryInterface;
-use MintyPHP\App\Module\ModuleEventDispatcher;
 use MintyPHP\Repository\Support\DatabaseSessionRepository;
 use MintyPHP\Repository\Support\RepoQuery;
 use MintyPHP\Service\Audit\AuditRecorderInterface;