Deploy 2: 2FA (App + Email) + REST API + CSV import-export + auto backup

- Filament v5 multiFactorAuthentication enabled on both panels (App + Email)
- HasAppAuthentication + HasEmailAuthentication on User and SuperAdmin
- Migration: app_authentication_secret + recovery_codes + email_authentication_at
- Sanctum REST API: /api/v1/login, /me, clients, vehicles, work-orders
- EnsureTokenMatchesTenant middleware blocks cross-tenant token usage
- CsvImportExport service: clients + vehicles bulk via plain CSV
- Import/Export buttons on Client + Vehicle list pages
- ApiTokens page in tenant panel (generate/revoke + last-used)
- BackupAllTenantsCommand + scheduler (daily 03:00, retain 14 days)
- Background scheduler in entrypoint.sh

app/Providers/Filament/CentralPanelProvider.php

@@ -37,6 +37,11 @@ class CentralPanelProvider extends PanelProvider
             ])
             ->authGuard('central')
             ->authPasswordBroker('super_admins')
+            ->multiFactorAuthentication([
+                \Filament\Auth\MultiFactor\App\AppAuthentication::make(),
+                \Filament\Auth\MultiFactor\Email\EmailAuthentication::make(),
+            ])
+            ->profile()
             ->discoverResources(in: app_path('Filament/Central/Resources'), for: 'App\\Filament\\Central\\Resources')
             ->discoverPages(in: app_path('Filament/Central/Pages'), for: 'App\\Filament\\Central\\Pages')
             ->pages([