fix(lint): enforce consistent-type-imports and fix import ordering across codebase

Auto-fix 862 lint errors: convert value imports used only as types to
`import type`, fix import group ordering in seed.ts and du-an-api.ts,
remove unused imports in auth controller, and clean up stale eslint-disable
comments referencing non-existent rules.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/api/src/modules/notifications/index.ts

@@ -1,2 +1,3 @@
 export { NotificationsModule } from './notifications.module';
 export { SendNotificationCommand } from './application/commands/send-notification/send-notification.command';
+export { NotificationsGateway } from './presentation/gateways/notifications.gateway';