- Add /admin/display-settings page with Kiosk and Mobile sections
- Company category checkbox filter + excluded companies searchable multi-select
- New DB tables: company_categories, company_types (migration 064)
- Sync COMPANY_CATEGORIES via CompanyCategories entity (id/name/isActive)
- Sync COMPANY_TYPES via Companies.companyType picklist
- Add to EntityType, ENTITY_DEPENDENCIES, sync-helpers, entity-mapper, entity-sync
- New API routes: /api/admin/display-settings (GET/POST), /api/data/company-categories, /api/data/companies-list
- Update all 4 routes (kiosk/stats, kiosk/activity, mobile/tickets, mobile/dashboard)
to filter by kiosk_settings company_category_ids + excluded_company_ids
- Add Display Settings nav link (SlidersHorizontal icon) to Admin menu
- Seed kiosk_settings: kiosk_company_category_ids=1, mobile_company_category_ids=1