Seed DemoWorld attendees and speakers for Events demo continuity

Attendee registrations, programme hosts, and event speakers now draw
name/email/phone/company from DemoWorld people instead of generic
placeholders, and staff logins skip the login reseed.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/Feature/DemoSeedCommandTest.php

@@ -7,6 +7,7 @@ use App\Models\QrCode;
 use App\Models\QrEventRegistration;
 use App\Models\User;
 use App\Services\Events\SubscriptionService;
+use App\Support\DemoWorld;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Illuminate\Support\Str;
 use Tests\TestCase;
@@ -128,4 +129,33 @@ class DemoSeedCommandTest extends TestCase
         $this->assertNotNull($user);
         $this->assertSame('demo-new@ladill.com', $user->email);
     }
+
+    public function test_pro_plan_uses_demo_world_attendees_and_speakers(): void
+    {
+        $user = User::factory()->create([
+            'public_id' => (string) Str::uuid(),
+            'email' => 'demo-pro@ladill.com',
+        ]);
+
+        $this->artisan('demo:seed', [
+            'identity' => $user->email,
+            '--plan' => 'pro',
+        ])->assertSuccessful();
+
+        $registration = QrEventRegistration::query()
+            ->where('user_id', $user->id)
+            ->where('attendee_name', 'Ama Mensah')
+            ->first();
+        $this->assertNotNull($registration);
+        $this->assertSame(DemoWorld::personByKey('ama-mensah')['email'], $registration->attendee_email);
+        $this->assertSame(DemoWorld::personByKey('ama-mensah')['phone'], $registration->attendee_phone);
+
+        $programme = QrCode::query()
+            ->where('user_id', $user->id)
+            ->where('type', QrCode::TYPE_ITINERARY)
+            ->first();
+        $this->assertNotNull($programme);
+        $host = $programme->content()['days'][0]['items'][0]['host'] ?? null;
+        $this->assertSame('Ama Mensah', $host);
+    }
 }