- Reworked the tenant admin login page

- Updated the User model to implement Filament’s tenancy contracts
- Seeded a ready-to-use demo tenant (user, tenant, active package, purchase)
- Introduced a branded, translated 403 error page to replace the generic forbidden message for unauthorised admin hits
- Removed the public “Register” links from the marketing header
- hardened join event logic and improved error handling in the guest pwa.

resources/js/admin/i18n/index.ts

@@ -10,6 +10,8 @@ import deOnboarding from './locales/de/onboarding.json';
 import enOnboarding from './locales/en/onboarding.json';
 import deManagement from './locales/de/management.json';
 import enManagement from './locales/en/management.json';
+import deAuth from './locales/de/auth.json';
+import enAuth from './locales/en/auth.json';
 
 const DEFAULT_NAMESPACE = 'common';
 
@@ -19,12 +21,14 @@ const resources = {
     dashboard: deDashboard,
     onboarding: deOnboarding,
     management: deManagement,
+    auth: deAuth,
   },
   en: {
     common: enCommon,
     dashboard: enDashboard,
     onboarding: enOnboarding,
     management: enManagement,
+    auth: enAuth,
   },
 } as const;