- 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/lang/en/auth.php

@@ -6,4 +6,14 @@ return [
     'throttle' => 'Too many login attempts. Please try again in :seconds seconds.',
     'login_success' => 'You are now logged in.',
     'login_failed' => 'These credentials do not match our records.',
+    'login' => [
+        'title' => 'Sign in',
+        'username_or_email' => 'Username or email address',
+        'password' => 'Password',
+        'remember' => 'Stay signed in',
+        'remember_me' => 'Stay signed in',
+        'submit' => 'Sign in',
+    ],
+    'verify_email' => 'Your email address is not verified. Please check your inbox for the verification link.',
+    'no_tenant_associated' => 'We could not find a tenant for your account. Please contact support.',
 ];