Misc unrelated updates

app/Providers/AppServiceProvider.php

@@ -155,7 +155,11 @@ class AppServiceProvider extends ServiceProvider
 
             $key = $tenantId ? 'tenant:'.$tenantId : ('ip:'.($request->ip() ?? 'unknown'));
 
-            return Limit::perMinute(100)->by($key);
+            return Limit::perMinute(600)->by($key);
+        });
+
+        RateLimiter::for('guest-api', function (Request $request) {
+            return Limit::perMinute(300)->by('guest-api:'.($request->ip() ?? 'unknown'));
         });
 
         RateLimiter::for('tenant-auth', function (Request $request) {

app/Providers/AuthServiceProvider.php

@@ -46,7 +46,7 @@ class AuthServiceProvider extends ServiceProvider
         });
 
         Gate::before(function (User $user): ?bool {
-            return $user->role === 'super_admin' ? true : null;
+            return $user->isSuperAdmin() ? true : null;
         });
     }
 }